The Adventure Game Interpreter (AGI) is a game engine which Sierra On-Line used through most of the 1980s to create and run animated, color adventure games. AGI-based computer games accept typed commands via keyboard, as well as joystick input.
In 1983, IBM commissioned Sierra On-Line to develop a game that would showcase the technical capabilities of the IBM PCjr, a home computer which IBM planned to release the following year. To meet the chall...
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The Adventure Game Interpreter (AGI) is a game engine which Sierra On-Line used through most of the 1980s to create and run animated, color adventure games. AGI-based computer games accept typed commands via keyboard, as well as joystick input.
In 1983, IBM commissioned Sierra On-Line to develop a game that would showcase the technical capabilities of the IBM PCjr, a home computer which IBM planned to release the following year. To meet the challenge, game designer Roberta Williams scripted a game that was to become King's Quest: Quest for the Crown, and lead developer Arthur Abraham developed a custom programming language called Game Assembly Language. After Sierra dismissed Abraham, IBM contributed to the development of King's Quest's game engine in order to help ensure the project's success.
The PCjr proved unpopular in the marketplace, and the May 1984 launch of King's Quest foundered. Nevertheless, later that year Tandy Corporation released the Tandy 1000, another IBM PC...
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