Adventure Game Interpreter

AGI ( Adventure Game Interpreter) is a development tool that has been used by Sierra Online to program their early Adventures.

The first King's Quest game originally used a game Assemble Language or *. Gal said program language. Your designer was Arthur Abraham. When he left Sierra, the company was no longer in a position to end the game. King's Quest was supposed to serve as a flagship product for the technology of the IBM PCjr. So " donated " IBM product, AGI, at Sierra to allow the development of King's Quest continue.

The mid- 80s was AGI an innovative technology. Newer versions have been adapted to support 16- color EGA graphics and Adlib sound card. Less well known here is the fact that Apple already had support for digital sound and polyphonic music IIgs version of AGI.

In the late 1980s, however, began AGI 160 × 200 resolution at to show their age and could not compete with newer engines like SCUMM by Lucasfilm Games, which were characterized by mouse control. 1990 prompted Sierra, instead of AGI ( Sierra Creative Interpreter) to use the SCI engine for their adventures games.

The AGI system was originally designed for the IBM PCjr. In the 1980s, it has also been ported to other platforms, and some games were commercially released on the Apple II, Apple Macintosh, Amiga and Atari ST. Although there was a Sega Master System version of King 's Quest and a NES version of King's Quest V, it is very unlikely that they use the AGI software system.

List of AGI games

This is a list of Sierra games that have been developed in AGI. Here it should be noted that there has been fan - companies and other individuals who normally produces shareware or unofficial AGI games.

  • King's Quest I: Quest for the Crown (1984 )
  • King's Quest II: Romancing the Throne (1985 )
  • King's Quest III: To Heir Is Human (1986 )
  • King's Quest IV: The Perils of Rosella (1988 ) *
  • Space Quest I: The Sarien Encounter ( 1986)
  • Space Quest II: Vohaul 's Revenge (1988 )
  • The Black Cauldron (1986 )
  • Donald Duck's Playground ( 1986)
  • Leisure Suit Larry in the Land of the Lounge Lizards (1987 )
  • Mixed - Up Mother Goose (1987 )
  • Police Quest: In Pursuit of the Death Angel ( 1987)
  • Gold Rush! (1988)
  • Manhunter: New York ( 1988)
  • Manhunter 2: San Francisco ( 1989)
  • King's Quest IV was simultaneously produced and released in AGI and SCI versions. The main advantages of SCI are higher resolution (320 × 200 instead of 160 × 200 in AGI), sound card support, mouse support and a more versatile scripting system. Sierra assumed that some systems would not be able to run the SCI version and developed a " light" version of the game. However, this turned out to be false, and the AGI version was quickly set. Therefore, the AGI version is considered collectible.

Similar software

  • Sarien (Sierra AGI resource interpreter engine ) is an open source engine, the AGI games can run. Sarien works on Linux / Unix, Microsoft Windows, Sega Dreamcast and GP32.
  • NAGI (New Adventure Game Interpreter) is an open-source AGI game engine for Linux and Windows, which is almost complete and has additional features such as mouse support.
  • AGI Studio An open source program that allows the natural development of games based on AGI. Also the processing of the old Sierra games is possible.
  • MEKA was the first AGI game engine, which is available to the public. The name is an acronym combining the names of the authors ( Joakim Möller, Lance Ewing and Peter Kelly) and the word adventure. It is open source and is available only for DOS.
  • Since version 0.10.0 ScummVM from the year 2007 supports AGI games. The AGI engine ScummVM is based on Sarien. ScummVM runs on a variety of platforms, including Linux / Unix (BSD and some others), Microsoft Windows, Sega Dreamcast, AmigaOS, MorphOS, Playstation 2, PSP, Nintendo DS, Wii, GP32, Palm OS, Windows Mobile / CE and GP2X.
Sierra's Creative Interpreter Nintendo Entertainment System The Black Cauldron (film)#Video game
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