This category covers AGI and SCI, the systems Sierra used to make their graphical adventures in.
AGI
AGI (Adventure Game Interpreter) was used to make the old Sierra games such as Kings Quest 1-3, Police Quest 1, Leisure Suit Larry 1, Space Quest 1-2, The Black Cauldron, and many others.
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SCI
SCI (Sierra Creative Interpreter) is an adventure interpreter made by Sierra, some classical games, like Larry, Space Quest, King Quest, Police Quest, and many others have been made with it.
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