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Adaptive Prose

Varying What is Written

Assorted Text Generation by Emily Short version 1
Sat, 10 Nov 2007 22:27:05 GMT
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Provides a range of convenient say phrases, including more varieties of number-printing, descriptions of object locations, and descriptions of which members of a set conform to a criterion (such as "Three of them are closed." when speaking of a group of doors). Compatible with 5G67, but not with earlier versions of Inform.
Complex Listing by Emily Short version 5 BUILT-IN
Sun, 11 Nov 2007 17:48:53 GMT
A flexible list-builder that allows listed items to be put in a specific order or delimited in a new way. (Particularly useful for writing lists of the form "X, Y, or Z" instead of "X, Y, and Z".)
Dialogue Punctuation by Ron Newcomb version 2
Sun, 11 May 2008 15:06:57 GMT
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Correctly placing double quotes, commas, periods, and spacing is a tricky and tedious problem for dialogue-heavy games whose characters' lines span multiple rules and say phrases. This extension provides say phrases that automate the process.
List Control by Eric Eve version 2
Sun, 4 May 2008 12:49:35 GMT
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Provides a means of using tables as shuffled, cyclic or stop lists.
List Controller by Eric Eve version 2
Sun, 4 May 2008 12:49:35 GMT
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Provides a means of using tables as shuffled, cyclic or stopping lists. This is an alternative to List Control that uses list controller objects instead of a Table of Table Types.
One-Shot Text by Jesse McGrew version 1
Tue, 7 Aug 2007 10:37:52 GMT
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Provides a way to ensure that a piece of text will only be printed once, or to have it appear differently the first time it's printed. (Officially withdrawn by the author now that there are text substitutions which handle this; we leave it on the website for people still using older versions of Inform.)
Output Filtering by Ron Newcomb version 2
Sun, 11 May 2008 15:06:57 GMT
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Specify rules to modify any and all game output. Recommended usage is solving capitalization, punctuation, and whitespace issues. Includes Eric Eve's Text Capture. (Updated for 5T18.)
Plurality by Emily Short version 5 BUILT-IN
Sun, 11 Nov 2007 17:48:53 GMT
Provides a number of helping say phrases to deal with inflections for singular and plural nouns; provides some control over pronoun usage.
Text Capture by Eric Eve version 5
Mon, 29 Dec 2008 18:57:16 GMT
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Allows the capture of text that would otherwise be output to the screen, so that the text can be further manipulated, displayed at some other point, or simply discarded. Version 5 includes support for the TextFyre FireVM.
Text Variations by Jon Ingold version 4
Sat, 4 Aug 2007 12:14:13 GMT
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Provides the ability to vary say statements inline, either randomly or sequentially. (This ability is built into Inform as of 4X60, but the extension remains for people who would like to use it with older versions of Inform.)

Varying What is Read

Pronouns by Ron Newcomb version 4
Sat, 26 Jul 2008 09:53:37 GMT
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Provides phrases for checking and setting the current value of a particular pronoun. Integrates well with Eric Eve's Conversation Framework.
Punctuation Removal by Emily Short version 3 BUILT-IN
Sun, 11 Nov 2007 17:48:53 GMT
Offers specialized commands to strip troublesome punctuation such as periods, commas, question marks, and quote marks out of the player's typed commands; provides a converter to especially interpret titles that contain full stops, such as "Mrs." or "Dr.". This extension is less necessary as of 5G67, but may still be more time and space-efficient than using regular expressions on the player's command, and is in any case provided in support of older code.
Snippetage by Dave Robinson version 2
Sat, 4 Aug 2007 12:14:13 GMT
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Some functions for setting and use of snippets (parts of the player's command). (Minor update for compatibility with 4W37.)

Using the Player's Input

Keyword Interface by Aaron Reed version 2
Fri, 08 May 2009 03:02:48 GMT
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This extension emulates Blue Lacuna's emphasized keyword system for simplifying common IF input. Nouns, directions, and topics can be typed without a verb to examine, go, or discuss. Works with Glulx or z-code.
String Buffers by Jesse McGrew version 5
Sat, 10 Nov 2007 23:30:18 GMT
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Gives objects the ability to store messages which can be manipulated with more flexibility than regular text values. Includes an example in which the player can write messages in a notebook. (Incompatible past 5T18, but unnecessary given that Inform now has indexed text; we leave it on the website for people still using older versions of Inform.)
Keywords for Conversation by Matt Wigdahl version 1 NEW
Tue, 02 Mar 2010 02:28:24 GMT
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Bridges Eric Eve's Conversation Package and Aaron Reed's Keyword Interface, providing an interface to support single-keyword conversations.

Non-standard User Interfaces

Simple CYOA by Mark Tilford version 1
Sat, 4 Aug 2007 12:14:13 GMT
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An extension for creating simple menu-based games.
Interactive Poetry by Michael Bacon version 2
Fri, 01 May 2009 15:09:40 GMT
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A very simple alternate interactive fiction system conducive to writing keyword-based interactive poetry or narrative.
Adventure Book by Edward Griffiths version 1/091203 NEW
Thu, 28 Jan 2010 00:25:41 GMT
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A system for creating Choose Your Own Adventure style programs, with advanced features. Based on an original programming system by Jon Ingold.
Interactive Poetic Interludes by Kazuki Mishima version 2 NEW
Sat, 30 Jan 2010 02:29:42 GMT
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A system for creating interludes within interactive fiction that present keyword-based interactive poetry or narratives.
Command Prompt on Cue by Ron Newcomb version 2 NEW
Sun, 31 Jan 2010 01:30:34 GMT
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Creates a situation without a command prompt where the player may simply press space or enter to WAIT. But if the player instead begins to type a command, the command prompt will then appear.

Place

Map

Automap by Mark Tilford version 2
Wed, 27 Jan 2010 23:44:13 GMT
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An extension to automatically draw a map.
Dynamic Rooms by Aaron Reed version 1
Fri, 08 May 2009 03:02:48 GMT
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Create and destroy new rooms on the fly. While this is technically possible with Jesse McGrew's Dynamic Objects, the method here is simpler, customized for rooms, and available for both z-code and Glulx.
Multiple Exits by Mikael Segercrantz version 4/080915
Tue, 16 Sep 2008 05:04:56 GMT
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Adds multiple randomized exits to a direction, so that going that direction will select one of several outcomes by chance. Compatible with, but does not require, Shipboard Directions, also by Mikael Segercrantz. (Updated for 5U92.)

Position Within Rooms

Restrictions by Jon Ingold version 2
Mon, 5 May 2008 03:18:56 GMT
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Provides for environments in which the player's actions are quickly and easily restricted.

Continuous Spaces and the Outdoors

AI Moving by Sebastian Rahn version 1
Mon, 28 Jan 2008 17:52:34 GMT
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Provides routines for moving NPCs intelligently in the 2D grid created by Room & Dimension.
Conditional Backdrops by John Clemens version 1
Mon, 26 Nov 2007 13:34:09 GMT
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An extension to allow rules for determining the presence of backdrops. (Functions only with versions of Inform prior to 5T18; however, from 5T18 Inform is able to do this natively. See the section on Moving Backdrops in the Changes chapter.)
Facing by Emily Short version 8
Wed, 27 Jan 2010 23:44:13 GMT
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Provides actions to face a direction, look toward a named room, or look through a named door. Version 5 updates for easier text replacement. (Updated for 5T18.)
Far Away by Jon Ingold version 4
Mon, 5 May 2008 03:18:56 GMT
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A simple extension providing for things out of reach.
Room & Dimension by Sebastian Rahn version 1
Mon, 28 Jan 2008 17:52:34 GMT
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Adds a 2D grid representation of a room.

Doors, Staircases, and Bridges

Deluxe Doors by Emily Short version 1
Sat, 8 Mar 2008 20:56:48 GMT
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Allows for doors that are implemented as having independent 'faces' -- to put a knocker on that can only be seen from on side, for instance, or to allow the player to lock one side with a key but the other with a latch. Also introduces a 'latched door' kind. Requires Plurality and Locksmith.
Secret Doors by Andrew Owen version 1
Sat, 4 Aug 2007 12:14:13 GMT
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Doors and switches that cannot be acted upon until they are discovered.

Passers-by, Weather and Astronomical Events

Atmospheric Effects by Mikael Segercrantz version 6/080508
Thu, 8 May 2008 19:52:48 GMT
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A table-based way to add atmospheric effects to rooms and regions. Upgraded for 5T18.
Weather by Ish McGravin version 3/080914
Sun, 14 Sep 2008 16:39:48 GMT
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Simulates a changing date, day/night cycle, randomized pseudo-weather, and semi-accurate moon phase. (Given a tiny update to compile with 5U92.)
Weather Effects by Mikael Segercrantz version 3/080508
Thu, 8 May 2008 19:52:48 GMT
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Requires Atmospheric Effects and Weather. This extension creates scenes based upon the settings produced by the Weather extension for ease of use with Atmospheric Effects's scene mechanism. The number of scenes created by Weather Effects is enough for the game not to fit in the Z-Machine, so this extension is Glulx only. Updated to work with 5T18.

Time and Plot

The Passage of Time

Basic Real Time by Sarah Morayati version 2
Sun, 17 May 2009 01:24:04 GMT
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Allows the author to incorporate Glulx real time events into an Inform 7 project.
Native Time Control by Tim Pittman version 1
Fri, 6 Jun 2008 13:01:19 GMT
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Allows the author control of the speed at which time passes in a story without creating new rules or replacing old ones.
Variable Time Control by Eric Eve version 2
Sun, 29 Mar 2009 18:56:04 GMT
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Allows individual actions to take a different number of seconds, or no time at all. Also allows the standard time taken per turn to be defined as so many seconds, which can be varied during the course of play.

Event Scheduling

Extended Timers by Gavin Lambert version 2 UPDATED
Mon, 22 Feb 2010 13:51:47 GMT
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Some additional ways of dealing with the standard times and timers.
Landmark Events by Jon Ingold version 2
Mon, 5 May 2008 03:18:56 GMT
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Provides a system for tracking events which have occured, and testing how recently they occured. Also includes some simple phrases for comparing times.
Scheduled Activities by John Clemens version 8
Mon, 11 May 2009 18:01:09 GMT
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This extension allows activities to be scheduled at absolute and relative times. These activities may later be checked or cancelled. The advantage of this over the standard events is that activities may take a variable, and the same activity may be scheduled multiple times. Rudimentary support is also provided for grouping output of multiple activities scheduled for the same turn. (Updated for 5Z71)

The Viewpoint Character

Characterization

Player-Character Requires Persuasion by Ron Newcomb version 1
Sun, 10 Aug 2008 15:17:13 GMT
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The Persuasion rules will be consulted for the player-character. Intended for works in which the author does not wish to conflate the player with the player-character.
Unsuccessful PC Attempt by Ron Newcomb version 1
Fri, 08 May 2009 03:02:48 GMT
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Will run the Unsuccessful Attempt By rules for all characters, including the player. Also silences the library messages printed by the built-in Check rules.

Background, Memory, and Knowledge

Epistemology by Eric Eve version 5
Sun, 19 Oct 2008 18:38:24 GMT
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Keeps track of what the player knows and has seen. Updated for 5T18. Version 5 contains optimizations and a bug fix.
Remembering by Aaron Reed version 1
Wed, 28 May 2008 04:25:16 GMT
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Replaces 'You can't see any such thing' with a message reminding the player where they last saw the item they're trying to interact with. Requires Epistemology by Eric Eve and Plurality by Emily Short.
WhoWhat by David Cornelson version 5/071110
Sat, 10 Nov 2007 23:30:18 GMT
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Allows the player to ask who and what things or people are within the game. Version 5 updates for compatibility with 5G67.

Commands

Looking

Exit Descriptions by Matthew Fletcher version 2
Sat, 4 Aug 2007 12:14:13 GMT
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Appends a list of exit directions and names any previously visited rooms at the end of a room description.
Exit Descriptions SP by Matthew Fletcher version 2
Sat, 4 Aug 2007 12:14:13 GMT
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Identical to Exit Descriptions, but in Spanish.
Exit Lister by Andre Kosmos version 1
Thu, 6 Sep 2007 14:41:31 GMT
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An EXITS command and a listing of exits after room descriptions. (Not to be confused with Exit Lister by Eric Eve, which puts a listing of exits into the status line.)
Exit Lister by Gavin Lambert version 2 UPDATED
Mon, 22 Feb 2010 13:51:26 GMT
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Based on Exit Lister by Andre Kosmos, Gavin Lambert's edition reworks the internal design and provides more options for controlling lists in dark rooms.
Introductions by Emily Short version 1
Sun, 30 Dec 2007 06:25:41 GMT
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Introductions provides an introductory paragraph about objects in a room description the first time the player looks in that location. It also allows the author to add segue text that will appear between one description and the next. It works on its own or in combination with Tailored Room Description or Ordinary Room Description.
Ordinary Room Description by Emily Short version 2
Thu, 30 Oct 2008 02:29:32 GMT
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Note: this extension is no longer supported by the author, and will receive no further updates. An extension to go with Room Description Control, emulating the default Inform output as closely as possible while enabling the author to make use of the prioritizing and concealing options of RDC. Version 2 is an internal refactoring to allow for easier maintenance.
Room Description Control by Emily Short version 9
Sat, 3 May 2008 12:12:37 GMT
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A replacement of the look rules that generate descriptions of the items in a room. Room Description Control allows the author to choose items in a room to conceal from description. It also allows him to arrange the order in which objects are described and manage the form that description takes. Note that Room Description Control is only a framework and will require the author to provide a set of writing a paragraph about rules. See Single Paragraph Description, Ordinary Room Description, and Tailored Room Description for options. (Updated for 5T18.)
Single Paragraph Description by Emily Short version 3
Tue, 25 Dec 2007 02:12:42 GMT
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Provides a very terse style of room description in which the objects in a room are listed in the same paragraph as the main room description text. Note: requires Room Description Control. Version 3 corrects a game-crashing bug that occurred when a room had no description at all.
Tailored Room Description by Emily Short version 8
Mon, 17 Dec 2007 00:02:44 GMT
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An extension to go with Room Description Control, providing a different style of room description than the default. Parenthetical remarks such as (open) and (in which are...) are omitted in favor of full English sentences. Version 7 restructures the code to make use of tables of template text, allowing it to be much more extensively customized than previous versions.
Mentioned In Room Description by Ron Newcomb version 1 NEW
Thu, 28 Jan 2010 02:48:14 GMT
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Objects, items, and people mentioned in square brackets within the room description or room heading will no longer be re-described later in the LOOK command.

Examining

Multi-examine by Jon Ingold version 3
Sun, 25 Jan 2009 23:14:00 GMT
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Allows us to provide descriptions to cover groups of objects, based on their kinds within the I7 structure. Also provides a framework for easily adding new non-list-based multiple actions and some handles for doing this neatly.
Undescribed Objects by Tim Pittman version 1
Wed, 28 May 2008 04:25:16 GMT
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Allows for objects to be made that print the parser error 'That's not something you need to refer to...' when anything is done to them. Compatible with, but does not require, Custom Library Messages by David Fisher.

Looking Under and Hiding

Underside by Eric Eve version 4
Mon, 22 Jun 2009 15:28:38 GMT
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Allows objects to be put under other objects. An underside usually starts out closed so that its contents are hidden from view. Requires Version 7 (or later) of Bulk Limiter; the space under objects is limited by bulk. Underside is compatible with Version 10 or later of Implicit Actions, but does not require it. Version 3 of Underside has been tested with Version 5Z71 of Inform.
Hiding Under by Eric Eve version 2
Mon, 22 Jun 2009 15:28:38 GMT
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Allows things to be hidden under other things, using a many-to-one underconcealment relation. Can be used either standalone (with basic functionality) or in conjunction with Underside (to add fuller functionality to both extensions). Version 2 of Hiding Under has been tested with Version 5Z71 of Inform, and may well work with later versions.
Hidden Items by Krister Fundin version 1
Thu, 9 Apr 2009 01:09:24 GMT
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Provides a simple way of defining objects (including doors and backdrops) that are initially out of play.

Inventory

Trinity Inventory by Mikael Segercrantz version 4/080708
Thu, 8 May 2008 19:52:48 GMT
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Provides a framework for listing inventories in natural sentences, akin to Infocom's game Trinity. Separates carried and worn objects, followed by objects that contains other objects. What's listed in the third section is customizable via a rulebook. Objects can be marked as not listed when carried or worn as well as marked as having their contents listed in the inventory when they're empty. This extension is based upon the extension Written Inventory by Jon Ingold. Updated for 5T18.
Written Inventory by Jon Ingold version 3
Mon, 5 May 2008 03:18:56 GMT
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Provides a framework for listing inventories in natural sentences. Separates carried and worn objects, followed by objects that contains other objects. What's listed in the third section is customisable via a rulebook.

Going, Pushing things in Directions

Approaches by Emily Short version 1
Wed, 26 Dec 2007 22:05:35 GMT
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Approaches creates a GO TO place command with automated movement and sophisticated descriptions of travel.
Directional Facing by Tim Pittman version 1
Sat, 4 Aug 2007 12:14:13 GMT
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Allows the player to move by forward, backward, left, and right depending on which way he is facing.
Instead of Going by Mikael Segercrantz version 3/071115
Thu, 8 May 2008 19:52:48 GMT
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Allows the author to create properties to describe blocked exits in specific rooms; allows more intelligent default responses when the player tries to go in a useless direction. (Unsupported, but we leave it up here for people who want to use it especially with older versions of Inform prior to 5T18.)
Permission to Visit by Ron Newcomb version 2
Fri, 01 May 2009 15:09:40 GMT
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In lieu of compass directions, we may VISIT, ATTEND, GO TO, and FIND various people, events, places, and things. Characters may INVITE, PERMIT, and FORBID each other to or from their respective domains.
Regional Travel by Juhana Leinonen version 1 NEW
Thu, 28 Jan 2010 02:58:52 GMT
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Allows the player to travel between regions. Useful for example when the player travels between large regions far apart from each other (e.g. cities), or for traveling in vehicles and public transportation.

Entering and Exiting, Sitting and Standing

Modified Exit by Emily Short version 3
Sun, 16 Sep 2007 19:50:13 GMT
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Changes the handling of the EXIT action, allowing commands such as EXIT PLATFORM and GET OUT OF CHAIR, making characters leave enterable objects before traveling, and altering the default interpretation of >OUT when the player is neither inside an object nor in a room with an outside exit. Version 3 adds to the documentation and changes the default output when using sequential output.

Opening, Closing, Locking and Unlocking

Locksmith by Emily Short version 7 BUILT-IN
Wed, 27 Aug 2008 16:40:03 GMT
Automates unlocking when the player carries appropriate keys; creates a passkey kind that, after use, gives an inventory listing showing what it opens.

Additional Command Sets

Empty Transfer by Emily Short version 3
Sat, 4 Aug 2007 12:14:13 GMT
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Provides an EMPTY action, allowing containers to be dumped into other containers or onto supporters, or simply onto the floor.
Supplemental Actions by Al Golden version 24 UPDATED
Mon, 22 Feb 2010 13:52:14 GMT
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Adds the actions blowing, digging, digging it with, filling, filling it from, filling it with, praying, praying to, praying for, swimming, swimming in, swimming across, swimming under, swimming over, swimming around, swimming through, and more.

Remembering, Converting and Combining Actions

Consolidated Multiple Actions by John Clemens version 1
Thu, 3 Jul 2008 10:23:17 GMT
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An extension to consolidate action reports when performing an action on multiple objects, such as with 'take all'. Requires Hypothetical Questions by Jesse McGrew. (Glulx only.)
Editable Stored Actions by Ron Newcomb version 5
Fri, 08 May 2009 23:39:18 GMT
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This extension expands section 12.20 of Writing with Inform. The individual parts of a stored action -- actor, noun, second noun, action-name -- can now be directly changed. Also adds four new parts: request, text, participle, and preposition.
Implicit Actions by Eric Eve version 11
Sat, 25 Apr 2009 14:50:45 GMT
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Provides implicit taking, opening, closing, locking and unlocking actions for a variety of cases where this makes for smoother game play. The extension also defines phrases which make it easy to define additional implicit actions if desired. Version 11 can be used with Locksmith by Emily Short (although Implicit Actions covers most of what Locksmith does, and in most cases it will be better to use Implicit Actions without Locksmith). Requires Plurality by Emily Short and Version 4 of Text Capture by Eric Eve.
Limited Implicit Actions by Eric Eve version 1
Thu, 23 Apr 2009 20:58:53 GMT
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A cut-down version of Implicit Actions for use where code size may be restricted and the full functionality of Implicit Actions is not needed. Requires Plurality by Emily Short and is compatible with Locksmith by Emily Short.
NPC Implicit Actions by Eric Eve version 2
Sun, 10 Aug 2008 15:17:13 GMT
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A basic extension of the Implicit Actions extension into actions carried out by NPCs. This extension automatically includes Implicit Actions.
Repeat Through Actions by Ron Newcomb version 2
Thu, 23 Apr 2009 01:20:10 GMT
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Allows us to write a repeat loop that steps through all actions in the game, or all the actions belonging to a kind-of-action.
Small Kindnesses by Aaron Reed version 1 NEW
Mon, 08 Feb 2010 13:23:26 GMT
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Provides a number of small interface improvements for players, understanding commands like GO BACK and GET IN, automatically getting off enclosables before moving, responding to vague movement commands when there is only one sensible option, and more.

Action at a Distance

Scope Control by Ron Newcomb version 1
Fri, 3 Oct 2008 00:18:15 GMT
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Allows us to ask why the Deciding the Scope For Something activity is running, so we can modify the scope only when we absolutely need to. Highly useful for giving NPCs commands over telephones or while in darkness, creating 'can hear' relations, or modifying how Inform parses the command line.

Alternate Default Messages

Custom Library Messages by David Fisher version 29/090225
Wed, 25 Feb 2009 16:07:03 GMT
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Enables the standard messages printed by the Inform library to be replaced with custom messages. This full version allows the author to switch to default messages in the first or the third person.
Default Messages by David Fisher version 12/091223 UPDATED
Fri, 29 Jan 2010 01:23:27 GMT
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Enables the standard messages printed by the Inform library to be replaced with custom messages, and is a more compact version of "Custom Library Messages" for projects that do not require the same flexibility.
Grouped Messages As Dialogue by Ron Newcomb version 1
Mon, 28 Jan 2008 17:52:34 GMT
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Allows the full complement of standard error and reporting messages to be changed wholesale to another set, instantly. Now these messages can be dressed-up as dialogue with whichever NPC is present.
Unknown Word Error by Neil Cerutti version 1
Tue, 18 Dec 2007 19:59:02 GMT
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Provides Infocom-style parser messages such as 'I don't know the word 'kludge'.'

Clarification and Correction

Disambiguation Control by Jon Ingold version 5
Wed, 17 Dec 2008 23:17:20 GMT
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Allows finer control over the disambiguation process used by Inform to decide what the player was referring to. Less guesswork, more questions asking for more input. Also removes the multiple-object-rejection in favour of asking for more information.
Numbered Disambiguation Choices by Aaron Reed version 2
Wed, 7 May 2008 05:00:20 GMT
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Numbers the options in disambiguation questions, to help new players and solve the 'disambiguation loop' problem caused by indistinguishable objects.

Alternatives to Standard Parsing

Questions by Michael Callaghan version 3 UPDATED
Thu, 28 Jan 2010 02:53:17 GMT
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Allows us to ask questions and to respond to answers given by the player outside the normal parser rules. Permits the use of questions requiring a number answer, selection from a menu, gender selection, yes / no answers and text answers. Also allows us to distinguish between closed questions that must be answered and open questions where the answer can be ignored and treated as normal parsed input.

Other Characters

Getting Started with Conversation

Conversation Framework by Eric Eve version 7 UPDATED
Thu, 28 Jan 2010 00:25:41 GMT
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A framework for conversations that allows saying hello and goodbye, abbreviated forms of ask and tell commands for conversing with the current interlocutor, and asking and telling about things as well as topics.

Saying Complicated Things

Assumed Conversers by Michael Martin version 2
Sun, 10 Aug 2008 15:17:13 GMT
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A minimal extension that will guess the NPC you intend to talk to if you give a command like "ASK ABOUT X" or "TALK ABOUT X". Other extensions do this as part of their system, but this extension allows the commands independent of system (as long as "asking it about" and "telling it about" remain core actions).
Conversation Nodes by Eric Eve version 4 UPDATED
Thu, 28 Jan 2010 00:56:57 GMT
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Builds on Conversational Defaults and adds the ability to define particular points in a conversational thread (nodes) at which particular conversational options become available.
Conversation Package by Eric Eve version 1
Wed, 30 Jan 2008 20:56:11 GMT
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This extension includes both Conversation Nodes and Conversation Suggestions, and makes the suggestions aware of conversation nodes. It therefore includes the complete conversational system in one package. It also requires Conversation Responses, Conversational Defaults, Conversation Framework and Epistemology. The documentation for this extension give some guidance on how these other extensions can be mixed and matched.
Conversation Responses by Eric Eve version 3
Sun, 25 Jan 2009 23:14:00 GMT
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Conversation Responses allows response rules for various conversational commands to be written in the form "Response for Bob when asked about..." or "Response for Bob when asked-or-told..." (or many other variations).
Conversation Rules by Eric Eve version 6
Sun, 4 May 2008 12:49:35 GMT
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A way of controlling conversations using rules and tables. Also implements topic suggestions and Conversation nodes. Requires Plurality by Emily Short and Conversation Framework, Epistemology and List Control by Eric Eve. (Updated for 5T18.)
Conversation Suggestions by Eric Eve version 3 UPDATED
Tue, 16 Feb 2010 19:26:13 GMT
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Provides a means of suggesting topics of conversation to the player, either in response to a TOPICS command or when NPCs are greeted. This extension requires Conversation Framework.
Conversational Defaults by Eric Eve version 2
Wed, 17 Dec 2008 23:17:20 GMT
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Provides a set of rules to facilitate defining default conversational responses for different conversational commands targeted at various NPCs. This extension requires Conversation Framework.
Quip-Based Conversation by Michael Martin version 4
Tue, 10 Jun 2008 12:00:56 GMT
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An extension to allow traditional conversation menus, in the vein of Inform 6's phtalkoo.h extension. Updated for 5T18.
Reactable Quips by Michael Martin version 9
Tue, 10 Jun 2008 12:00:56 GMT
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A table-based approach to NPC conversation chains, as well as allowing rules to fire on lines of conversation. Updated for 5T18.
Simple Chat by Mark Tilford version 2
Wed, 30 Apr 2008 18:05:03 GMT
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A menu-based system for NPC conversation. (Updated with small format changes to compile with 5T18.)

Character Emotion

Mood Variations by Emily Short version 2
Wed, 30 Jan 2008 16:13:15 GMT
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Allows the author to define a mood value for characters and then use text substitutions such as '[when bored]The king fidgets on his throne[or sleepy]The king snores[at other times]The king grins[end when].'

Characters Following a Script

Action Queuing by Jesse McGrew version 3
Sat, 4 Aug 2007 12:14:13 GMT
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Provides a way to store actions for NPCs to perform in order. The included example has two movers following pre-planned routes to bring items in from a truck, each waiting when they need to put something on a surface the other is carrying. (Not compatible with 5T18, but not necessary either; we leave it on the website for those still using older versions of Inform.)

Traveling Characters

Patrollers by Michael Callaghan version 9
Mon, 22 Jun 2009 15:28:38 GMT
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Allows a non player character to follow routes defined by rooms, directions, random journeys, to a destination or shadowing the player. Version 9 corrects a namespace clash with another extension.
Simple Followers by Emily Short version 5
Mon, 17 Dec 2007 00:02:44 GMT
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Allows non-player characters to follow the player (or one another); adds a FOLLOW command and a corresponding STOP FOLLOWING command so that the player can issue these orders to non-player characters. Version 4 updates to allow characters to follow through doors; version 5 makes a cosmetic improvement to one error message.

Goal-Seeking Characters

Planner by Nate Cull version 2/080503
Sat, 3 May 2008 17:23:01 GMT
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A stateless goal-planning engine for IF actors. It is an Inform 7 reimplementation of the library formerly known as RAP (Reactive Agent Planner) for Inform 6 and TADS. (Updated for 5T18.)
Basic Plans by Nate Cull version 3/080503
Sat, 3 May 2008 17:23:01 GMT
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A library of basic relations, actions and plans for Planner, together with an example game. (Updated for 5T18.)

Game Systems

Combat

Armed by David Ratliff version 3
Sat, 17 May 2008 14:29:07 GMT
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This is just a (no longer) little extension to handle weapons and fighting.

Magic

Spellcasting by Jim Aikin version 1
Wed, 25 Mar 2009 00:37:40 GMT
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Provides a way to create new magic spells that can be cast anywhere (and that might do anything at all), but that the player must learn before using.

Vehicles, Animals, and Furniture

Bicycles, Cars, and Boats

Rideable Vehicles by Graham Nelson version 2 BUILT-IN
Sun, 11 Nov 2007 17:48:53 GMT
Creates vehicles and animals (such as horses) that respond to RIDE and DISMOUNT, and describe the player as riding on rather than in.

Ships, Trains, and Elevators

Shipboard Directions by Mikael Segercrantz version 3/080915
Tue, 16 Sep 2008 05:05:28 GMT
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Creates FORE, AFT, PORT, and STARBOARD along the same lines as the standard Inform directions. (Updated for 5U92.)
Transit System by Emily Short version 4
Tue, 16 Sep 2008 07:19:06 GMT
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Provides a train-car kind which follows a set schedule around the game map, allowing the player and other characters to board or dismount at stops. Version 3 is upgraded for 5U92; version 4 remedies a glitch in version 3.

Furniture

Automated Drawers by Emily Short version 3
Sun, 10 Aug 2008 15:17:13 GMT
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Allows the author to define an object with drawers as in "Three horizontal drawers are part of the desk" or "2 horizontal drawers are part of the table". Automatically tags the drawers as "top", "middle", "bottom", "left", etc.; cleans up description and disambiguation issues often arising in this situation. Requires Assorted Text Generation.

Kitchen and Bathroom

Modern Conveniences by Emily Short version 2
Mon, 17 Dec 2007 00:02:44 GMT
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A packaging-up of the kitchen and bathroom example in the manual: creates kitchen and bathroom types of room. Version 2 fixes a small error such that cabinets are now by default closed and openable.

Props: Food, Clothing, Money, Toys, Books, Electronics

Bags, Bottles, Boxes and Safes

Considerate Holdall by Jon Ingold version 9
Mon, 26 Jan 2009 04:44:56 GMT
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Provides the player's holdall object with a memory of recently used held items, so that the automatic stashing mechanism will first put away objects which have not been referenced recently.
Puzzle Boxes by Jason Catena version 1
Fri, 11 Jul 2008 10:45:19 GMT
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Provide templates for pushbutton-combination puzzle boxes via a few examples.

Telephones

Telephones by George Tryfonas version 1
Sat, 10 May 2008 00:13:06 GMT
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Telephones, standard and portable.

Computers

Computers by Emily Short version 2 NEW
Thu, 28 Jan 2010 00:52:10 GMT
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Computer hardware and software, including search engines and email programs.

Physics: Substances, Ropes, Energy and Weight

Liquids

Liquid Handling by Al Golden version 6
Thu, 23 Apr 2009 01:20:10 GMT
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Provides some actions for pouring and otherwise manipulating liquids. Liquid Handling is corrected to work with 5U92 and now requires Version 15 of Supplemental Actions.

Volume, Height, Weight

Bulk Limiter by Eric Eve version 7
Sun, 30 Mar 2008 01:16:48 GMT
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Containers that limit their contents by bulk.
Bulky Items by Juhana Leinonen version 2
Fri, 21 Nov 2008 00:25:24 GMT
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Bulky items that can be carried only if the player is not carrying anything else. Version 2 fixes a bug and adds a new example.

Journals and Notebooks

Notepad by Jim Aikin version 1
Thu, 04 Jun 2009 00:34:31 GMT
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Provides a new kind of thing called a notepad, which the player (and NPCs) can write in. The text in a notepad can be read, added to, copied, erased, and erased from in a selective manner. It can also be write-protected. A notepad can optionally require a writing implement.

Numerical Effects and Programming Tools

Randomness

Dice-Lock by S John Ross version 1/080522
Fri, 23 May 2008 16:11:27 GMT
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Dice-Lock is a lightweight set of tools for preserving important random results against brute-force UNDO tactics.
Procedural Randomness by Aaron Reed version 1
Fri, 08 May 2009 03:02:48 GMT
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Adds a say option, 'with procedural randomness,' that will reliably choose the same text as long as its seed is set to the same number or game object.
Randomness by Mikael Segercrantz version 1/080522
Fri, 23 May 2008 16:11:27 GMT
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Random number generation using a simple seedable pseudorandom number generator.

Mathematics

Fixed Point Maths by Michael Callaghan version 3 UPDATED
Thu, 28 Jan 2010 02:35:42 GMT
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Provides the use of fixed point maths with addition, subtraction, multiplication, division and some common mathematical functions. Supports numbers in the range -214748.3658 to 214748.3647. For Glulx only. Minor adaptation to the square root function for compatibility with 5Z71.

Rulebook Manipulation

Repeat Through a Rulebook by Ron Newcomb version 4
Thu, 25 Sep 2008 14:21:08 GMT
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Allows us to write a repeat loop that steps through all the rules in a rulebook, to count those rules, to pick a random rule, and to ask if a rule is currently listed in a given rulebook.

Dynamic Memory Features

Dynamic Objects by Jesse McGrew version 4/091020 UPDATED
Thu, 28 Jan 2010 01:02:37 GMT
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Provides the ability to create new objects during game play. Requires Dynamic Tables. Version 3 works with version 5U92.
Dynamic Tables by Jesse McGrew version 2
Fri, 27 Jun 2008 14:43:06 GMT
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Provides a way to change the capacity of a table during the game. Version 2 adds a "new table" feature.

Conditionals

Alternatives by Eric Eve version 1
Sat, 25 Apr 2009 15:16:20 GMT
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Allows checking the presence of an object or value in a set of objects or values with new either/or and neither/nor phrases. e.g., "If the noun is either the carrot or the potato:", or "Instead of eating something when the noun is neither the cake nor the pudding:".
Hypothetical Questions by Jesse McGrew version 2
Fri, 27 Jun 2008 14:43:06 GMT
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Allows us to test the consequences of a phrase or action without permanently changing the game state. For Glulx only. Version 2 fixes paragraph spacing.
Passable Relations by Ron Newcomb version 1
Sun, 25 Jan 2009 23:14:00 GMT
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Allows us to ask if an abstract relation holds between two objects. Supports the standard physical relations as well as any new relations.

Out of World Actions and Effects

Start-up Features

Title Page by Jon Ingold version 2
Wed, 7 May 2008 05:00:20 GMT
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Provides an intro panel to the game, offering a menu, a restore and restart prompt, a quotation and (under Glulx) a picture.
Extended Banner by Stephen Granade version 5
Thu, 15 Nov 2007 05:38:40 GMT
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More control over what is printed in a banner, including an easily-included copyright line. Updated for use with Inform 5G67.

Saving and Undoing

Conditional Undo by Jesse McGrew version 3
Fri, 27 Jun 2008 14:43:06 GMT
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Lets the game author turn "undo" on or off for particular actions or in certain situations, rather than just turning it off completely with "Use undo prevention." Version 3 has been updated for I7 build 5T18.
Undo Output Control by Erik Temple version 1/090626
Thu, 16 Jul 2009 05:28:15 GMT
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Provides rulebooks that provide fuller control over UNDO messages than Custom Library Messages does; also provides the ability to write rules associated with each step in the UNDO process. Provides multiple ways to suspend UNDO temporarily. Compatible with--but does not require--Conditional Undo by Jesse McGrew.

Helping and Hinting

Basic Help by David Cornelson version 1
Wed, 27 Jan 2010 23:44:13 GMT
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Allows you to add basic Interactive Fiction help to your game.
Adaptive Hints by Eric Eve version 3
Wed, 18 Feb 2009 09:31:41 GMT
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An adaptive hint system based on Menus by Emily Short.
Advanced Help Menu by John W Kennedy version 1
Sat, 4 Aug 2007 12:14:13 GMT
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Builds on Emily Short's Basic Help Menu, with hints that are enabled under program control and sample transcriptions.
Basic Help Menu by Emily Short version 1 BUILT-IN
Sun, 11 Nov 2007 17:48:53 GMT
Provides a simple collection of standard IF-playing advice that can be incorporated as a help menu in a game.
Intelligent Hinting by Aaron Reed version 2
Wed, 17 Dec 2008 23:17:20 GMT
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Encodes knowledge about puzzles into the game's code, allowing it to know which puzzle the player is currently on. Provides verbs that suggest to the player the next move that should be taken, automatically incorporating preliminary actions such as finding keys and navigating the map to get to a required location.
Metagame and Fixes by Jason Catena version 1
Tue, 8 Jul 2008 16:40:14 GMT
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Fix parts of environment. Provide destination, hint, credit, and sidenote properties as out of world spoilers, and commands to use them: credit, hint, recall, sidenote, teleport with (not for release) and travel with.
Mistype by Cedric Knight version 1
Sat, 4 Aug 2007 12:14:13 GMT
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Adds automatic typo-correction for the player's input. Note: Mistype is unfortunately incompatible with recent versions of Inform (from at least 5T18 on, and perhaps earlier), and is preserved here for users of older builds.
Poor Man's Mistype by Aaron Reed version 1
Thu, 25 Sep 2008 22:04:38 GMT
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Adds basic typo correction by checking the first few letters of misunderstood input against the printed names of visible objects. Requires Version 2 of Smarter Parser by Aaron Reed.
Smarter Parser by Aaron Reed version 2
Thu, 25 Sep 2008 22:04:38 GMT
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Understands a broader range of input than the standard parser, and can direct new players towards proper syntax. A rules-based system makes it easy to customize by removing or add new forms of understood input.
Tutorial Mode by Emily Short version 1
Fri, 13 Jun 2008 14:52:21 GMT
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Adds a tutorial mode, which is on by default, to any game, to introduce key actions for the novice player. Can be revised or expanded by the author.
Spin by Aaron Reed version 1 NEW
Thu, 11 Feb 2010 03:04:07 GMT
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Lets the player bypass puzzles they aren't interested in whenever they have spin, which they gain by experimenting and interacting with the story world.

Scoring

Achievements by Mikael Segercrantz version 4/080508
Thu, 8 May 2008 19:52:48 GMT
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A table-based way to assign scores for actions, rooms and objects. Recent versions add rankings and pasteable examples, and move all text to variables easily changed by the author. Updated for 5T18.

Ending

Recorded Endings by Emily Short version 2
Thu, 04 Jun 2009 00:34:31 GMT
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Records the endings the player encounters in multiple play-throughs to an external file; then adds an ENDINGS option to the final question to allow the player to review which endings he has seen so far. (Glulx-only)

Typography, Layout, and Multimedia Effects

Screen Effects (General)

Basic Screen Effects by Emily Short version 5 BUILT-IN
Sun, 11 Nov 2007 17:48:53 GMT
Provides phrases to clear the screen, wait for a keypress, print centered text to the main screen, force the display of a stored quotation, and modify the layout of the status line. Also offers colored text for the Z-machine. (For colored text under Glulx, consult Glulx Text Effects: the set-up is very different.)
Pausing the game by John Goettle version 1
Sun, 16 Mar 2008 19:48:57 GMT
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Provides template actions for pausing and unpausing the game.

Typography

Case Management by Emily Short version 1 BUILT-IN
Sun, 11 Nov 2007 17:48:53 GMT
Allows the printing of texts or item names in upper case or lower case. As of 5G67, this is largely unnecessary, since these effects can be achieved more generally and reliably using indexed text; the extension is supplied to support older code.
Glulx Boxed Quotation by Eliuk Blau version 2
Wed, 25 Mar 2009 00:37:40 GMT
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Allows the use of Z-Machine style boxed quotations under Glulx.
Glulx Text Effects by Emily Short version 3
Fri, 6 Jun 2008 21:38:49 GMT
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Controls for color and text appearances under Glulx.
Greek To Me by Adam Thornton version 2
Sat, 8 Mar 2008 20:56:48 GMT
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Defines Greek letters only.
line break workaround by Jon Ingold version 1
Sat, 4 Aug 2007 12:14:13 GMT
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A work-around for certain difficulties with line breaks. (Not compatible since 4S08, but not necessary either; this is preserved here for those using legacy versions of Inform.)
Repeat Boxes by Dave Robinson version 1
Mon, 29 Dec 2008 18:57:16 GMT
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By default a specific text value can be displayed as a boxed quotation only once. This extension allows an author to force a quotation to be displayed multiple times.
Runic Characters by Adam Thornton version 2
Sat, 8 Mar 2008 20:56:48 GMT
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Defines Runic letters only.
Unicode Character Names by Graham Nelson version 1 BUILT-IN
Sun, 11 Nov 2007 17:48:53 GMT
Defines 2909 names like [unicode Greek small letter gamma] for Latin, Cyrillic, Greek and Hebrew letters, along with currency and other symbols.
Unicode Full Character Names by Graham Nelson version 1 BUILT-IN
Sun, 11 Nov 2007 17:48:53 GMT
Defines 12997 names like [unicode Arabic letter hah with three dots above] for the full range of characters named in the Unicode 4.1 standard.
Unicode Interrogation by Michael Martin version 2
Sun, 10 Aug 2008 15:17:13 GMT
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Allows the game to check whether a given unicode character is supported on a given interpreter before attempting to print it. Unicode Interrogation Version 1 did not compile under Glulx; this version compiles and runs under both formats.

The Status Line

Exit Lister by Eric Eve version 8
Sat, 7 Mar 2009 16:46:53 GMT
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A status line exit-lister and an EXITS command, with optional colouring of unvisited exits.
Status Line Removal by Emily Short version 2
Sun, 18 Nov 2007 22:13:29 GMT
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Entirely eliminates the status line from a game. Version 2 works on Glulx, whereas Version 1 was z-machine only.

Footnotes

Footnotes by Stephen Granade version 1
Sun, 13 Jan 2008 01:19:55 GMT
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Lets you add footnotes to your game, similar to those in the Infocom game Hitchhiker's Guide to the Galaxy. Footnotes are numbered beginning with 1, and are only assigned numbers as they are referenced. The player can turn footnoting on and off.

Menus

Menus by Emily Short version 2 BUILT-IN
Sun, 11 Nov 2007 17:48:53 GMT
Allows the author to create a menu (for instance to deliver help and hint information) that temporarily takes over from the regular parser.

Glulx Multimedia Effects (General)

Glulx Entry Points by Emily Short version 6
Fri, 6 Jun 2008 14:10:31 GMT
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Provides some standard hooks for building multimedia Glulx extensions that will be able to work together. Version 6 addresses some bugs and is not the same as released in Inform 5T18.

Glulx Graphics

Flexible Windows by Jon Ingold version 8
Sat, 27 Jun 2009 13:42:47 GMT
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An extension for constructing multiple-window games, which can be created and destroyed during play.
Glulx Drawing Commands by Erik Temple version 1/090629
Thu, 16 Jul 2009 05:28:15 GMT
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Enables the basic Glulx drawing commands at the I7 level. Intended to allow authors to write complex window-drawing rules without dropping into I6. Requires either Simple Graphical Window or Flexible Windows.
Glulx Image Centering by Emily Short version 1 BUILT-IN
Sun, 11 Nov 2007 17:48:53 GMT
An extension to center images in the main text window; variably effective depending on the abilities of the interpreter used.
Graphical Window Animation by Erik Temple version 3
Thu, 04 Jun 2009 00:34:31 GMT
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Allows the author to define frames of an animation and show them in a graphics window at a specified frame rate, either once or in a loop. Two additional files are associated with this extension: the collection of images used in the included example and further example games with source and images.
Graphical Window Sprites by Erik Temple version 1
Mon, 22 Jun 2009 15:28:38 GMT
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Provides for the creation of graphical sprites that can be easily organized, individually scaled, and drawn to a Glulx graphical window to create composite scenes, graphical user interfaces, etc. When used with Jeff Sheet's Graphic Links extension, sprites can be clicked on to supply commands on behalf of the player. Images and game files for the examples from the documentation, as well as a further example, are available here. Requires Simple Graphical Window by Emily Short and Fixed Point Maths by Michael Callaghan.
Inventory Window by Jon Ingold version 5
Mon, 5 May 2008 03:18:56 GMT
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An extension providing a inventory window, and optionally, a graphics panel.
Location Images by Emily Short version 1
Sat, 4 Aug 2007 12:14:13 GMT
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Allows the author to set per-room images and display these in a graphics window as the player moves from room to room. Glulx only. Requires Glulx Entry Points and Simple Graphical Window by Emily Short.
Simple Graphical Window by Emily Short version 6
Sun, 25 Jan 2009 23:14:00 GMT
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Provides a graphics window in the upper part of the screen, in which the author can place images; with provision for scaling, tiling, or centering images automatically, as well as setting a background color. Extension requires Glulx Entry Points. Glulx only. (Version 6 initializes the screen consistently on all interpreters).

Glulx Hyperlinks

Basic Hyperlinks by Emily Short version 2
Fri, 6 Jun 2008 15:23:09 GMT
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Allows the author to create hyperlinks in output text, and assign results to clicking on them. Glulx only. Requires Glulx Entry Points.
Graphic Links by Jeff Sheets version 2
Mon, 22 Jun 2009 15:28:38 GMT
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Allows the author to set hyperlinks in the Simple Graphical Window and give instructions about what is to result from performing them. This version has some minor improvements from Erik Temple.
Hyperlink Interface by Leonardo Boselli version 1 NEW
Thu, 28 Jan 2010 02:41:08 GMT
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This extension modifies the emulation of Blue Lacuna's emphasized keyword system for simplifying common IF input (by Aaron Reed) substituting emphasis with hyperlinks. Objects, directions, and topics can be clicked directly to examine, go, or discuss. Works with Glulx. Requires Basic Hyperlinks by Emily Short and Text Capture by Eric Eve.

Glulx Sound

Located Sounds by Mikael Segercrantz version 2/080508
Thu, 8 May 2008 19:52:48 GMT
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Located Sounds allows us to assign a sound and a message to each room and item of the game. Updated for 5T18.

Testing and Publishing

Testing and Debugging

Debug Files by Juhana Leinonen version 1
Sat, 25 Apr 2009 14:50:45 GMT
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A development tool for saving debugging information to an external text file during beta testing. (Glulx-only)
Debugging by Al Golden version 6 UPDATED
Sat, 27 Feb 2010 21:23:19 GMT
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Implementation of the PLACES and OBJECTS commands from Inform 6, as well as the means to turn on RECORDING and REPLAY within a released game.
Object Response Tests by Juhana Leinonen version 3
Thu, 28 Jan 2010 02:52:12 GMT
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A development tool for testing all actions on any given object - or one action on all objects - at once to see whether the game's responses are sensible. Version 2 adds the possibility to test individual actions and to run the tests with NPC as the actor.
Permanent Debugging by Erik Temple version 1
Mon, 22 Jun 2009 15:28:38 GMT
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Workarounds to improve debugging of multimedia projects. Provides a way for the author to release a build of a multimedia game while retaining both custom and built-in debugging commands. Also wraps Inform's debug tracing routines in phrases that authors can use to trigger rule-tracing from the source text rather than from the command prompt.
Property Checking by Emily Short version 3
Tue, 24 Jun 2008 11:39:29 GMT
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A lightweight extension to identify rooms and objects in a game for which no description has yet been written. Version 3 corrects a syntax error that prevented compilation under 5T18.
Simple Debugger by Michael Hilborn version 1/080105
Sun, 13 Jan 2008 01:38:22 GMT
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Easy debugging mechanisms for authors and play testers.

Publishing

GNU General Public License v3 by Free Software Foundation version 1.00c
Sun, 25 Jan 2009 23:14:00 GMT
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An extension to facilitate releasing interactive fiction under the GNU Public License v3. (Version c corrects a source formatting problem that could cause problems on newer versions of Inform.)
Helpers for GBA Frotz by S John Ross version 1/061104
Sat, 4 Aug 2007 12:14:13 GMT
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This extension adds ease-of-use features specific to Jonas Minnberg's port of Frotz to the GameBoy Advance.

Translations

French

French by Eric Forgeot version 6/090601 UPDATED
Thu, 04 Feb 2010 14:50:39 GMT
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A French language file for replacing the language of play. (Updated for 5Z71.)

German

German by Banbury & Christian Bluemke version 2/100129 UPDATED
Wed, 03 Feb 2010 01:14:38 GMT
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An extension to make German the language of play. Designed for I7 Build 5Z71.
German Basic Help Menu by Lukas Strahner version 1 NEW
Sun, 31 Jan 2010 18:39:03 GMT
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Provides a HELP command which brings up a menu giving standard instructions about IF. This is the German translation of Emily Short's Extension 'Basic Help Menu'.
German Basic Screen Effects by Lukas Strahner version 1 NEW
Sun, 31 Jan 2010 18:39:07 GMT
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This is a German language add-on for Basic Screen Effects by Emily Short.
German Epistemology by Lukas Strahner version 1 NEW
Sun, 31 Jan 2010 18:39:11 GMT
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This is a German language add-on for Epistemology by Emily Short.
German Menus by Lukas Strahner version 1 NEW
Sun, 31 Jan 2010 18:39:14 GMT
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This is a German language add-on for Menus by Emily Short.

Italian

Italian by Massimo Stella version 2 UPDATED
Tue, 16 Feb 2010 19:30:19 GMT
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Lavoro basato sull'espansione Custom Library Messages di David Fisher. Modifica i messaggi del parser, ora tradotti in italiano. An Italian language file for replacing the language of play, written for IF72. Requires Punctuation Removal by Emily Short.

Spanish

Spanish by Sebastian Arg version 1/090402 UPDATED
Thu, 28 Jan 2010 03:09:55 GMT
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Spanish language file for replacing the language of play. (Updated for 5U92.)
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