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Game Engine: Adventure Game Interpreter (AGI)

Group Description

The Adventure Game Interpreter (AGI) engine was first introduced by Sierra for its early avatar-moving adventure games, pioneered by King's Quest (1984), wherein the engine was briefly referred to as the GAL (Game Assembly Language).

The game engine was designed by Arthur Abraham as a replacement for their text-adventure-with-pictures ADL engine used in their High Res Adventure games, and was initially meant for the IBM PCjr (and, happily, Tandy clones) but was subsequently ported to other platforms. Manhunter 2: San Francisco (1989) was the last commercial game published by Sierra using the AGI engine as the engine could no longer compete with other adventure game engines at that time, and was replaced by the Sierra's Creative Interpreter (SCI) engine. The AGI engine however, continues to be used to create unofficial (shareware/freeware) AGI games by nostalgic individual programmers and companies.

Not to be confused with the Game Engine: Adventure Game Studio (AGS) game group.
Viewing Page 1 of 2 (items 1-25 of 27) Next
Game Titlesorted in descending orderYearPlatformPublisherUser Score
Fuck Quest 2: Romancing the Bone2004DOS, Windows0.97
AGI Tetris2004DOS...
Enclosure2004WindowsFemo Duo Entertainment...
Corby's Murder Mystery2003DOS...
Space Quest 0: Replicated2003Windows...
The Sorceror's Appraisal2002DOS...
Hank's Quest: Victim of Society2002DOSFemo Duo Entertainment...
Voodoo Girl: Queen of the Darned2002Atari ST, DOS...
Space Quest: The Lost Chapter2001DOS...
Residence 44 Quest1999DOS44-productions...
Cloak of Darkness1999Browser, Windows...
Fuck Quest1998Atari ST, DOS, Windows1.27
California Gold Rush!1998DOS, WindowsSoftware Farm, Inc., The...
Manhunter 2: San Francisco1989Amiga, Atari ST, DOS, MacintoshSierra On-Line, Inc.3.54
Manhunter: New York1988Amiga, Apple II, Apple IIgs, Atari ST, DOS, MacintoshSierra On-Line, Inc.3.58
King's Quest IV: The Perils of Rosella1988Amiga, Apple II, Apple IIgs, Atari ST, DOSSierra On-Line, Inc.3.91
Gold Rush!1988Amiga, Apple II, Apple IIgs, Atari ST, DOS, Macintosh, WindowsSierra On-Line, Inc.3.38
Police Quest: In Pursuit of the Death Angel1987Amiga, Apple II, Apple IIgs, Atari ST, DOS, MacintoshSierra On-Line, Inc.3.73
Space Quest II: Chapter II - Vohaul's Revenge1987Amiga, Apple II, Apple IIgs, Atari ST, DOS, MacintoshSierra On-Line, Inc.3.70
Leisure Suit Larry in the Land of the Lounge Lizards1987Amiga, Apple II, Apple IIgs, Atari ST, DOS, Macintosh, TRS-80 CoCoSierra On-Line, Inc.3.94
Mixed-Up Mother Goose1987Amiga, Apple II, Apple IIgs, Atari ST, DOSSierra On-Line, Inc.3.73
Space Quest: Chapter I - The Sarien Encounter1986Amiga, Apple II, Apple IIgs, Atari ST, DOS, MacintoshSierra On-Line, Inc.3.86
The Black Cauldron1986Amiga, Apple II, Apple IIgs, Atari ST, DOS, PC BooterSierra On-Line, Inc.3.56
King's Quest III: To Heir is Human1986Amiga, Apple II, Apple IIgs, Atari ST, DOS, Macintosh, TRS-80 CoCoSierra On-Line, Inc.3.70
King's Quest II: Romancing the Throne1985Amiga, Apple II, Apple IIgs, Atari ST, DOS, Macintosh, PC BooterSierra On-Line, Inc.3.33
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Selected Covers

Manhunter: New York Atari ST Front Cover
Front cover for Manhunter: New York

Selected Screenshots

Introduction and starting location, Inform Z-code version
Screenshot from Cloak of Darkness
Game group created by Indra was here (20867), additional games added to group by Patrick Bregger (265343), Anym (209), Duncan Cross (2045), Sciere (747674), Pseudo_Intellectual (63663), vedder (54987) and Jeanne (76260)
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