Game Engine: Sierra's Creative Interpreter (SCI)

Group Description

Because Sierra's previous AGI engine had been initially conceived for the PCjr, it found itself under-equipped to take advantage of a hardware revolution several years later, allowing expanded graphics and sound capabilities. Jeff Stephenson was therefore called upon to provide a game-making framework for current and future markets. This resulted in an object-oriented scripting language, initially entitled the LSCI (Large-model Script Code Interpreter), that was soon re-titled as Sierra's Creative Interpreter.

SCI was in continuous development for eight years, with five major versions, from 1988 to 1996.
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Game Titlesorted in descending orderYearPlatformPublisherUser Score
King's Quest 4+5+62010WindowsActivision Publishing, Inc.5.00
Space Quest 4+5+62010WindowsActivision Publishing, Inc.4.00
Aquarius: An Aquatic Experience2007DOSThe SCI Programming Community...
Space Quest Collection2006WindowsSierra Entertainment, Inc.3.67
Leisure Suit Larry: Collection2006WindowsSierra Entertainment, Inc.2.83
Police Quest: Collection2006WindowsSierra Entertainment, Inc.4.25
King's Quest Collection2006WindowsSierra Entertainment, Inc.3.80
Phantasmagoria Stagefright1999DOS, Windows, Windows 3.xSierra On-Line, Inc.3.80
Leisure Suit Larry: Ultimate Pleasure Pack1999DOS, Windows, Windows 3.xSierra On-Line, Inc.3.87
Gabriel Knight Mysteries: Limited Edition1998DOS, Windows, Windows 3.xSierra On-Line, Inc.3.98
Leisure Suit Larry: Collection Series1997DOS, WindowsSierra On-Line, Inc.3.74
Space Quest: Collection Series1997DOS, Windows, Windows 3.xSierra On-Line, Inc.3.72
Police Quest: Collection Series1997DOS, Windows, Windows 3.xSierra On-Line, Inc.3.63
King's Quest: Collection Series1997DOS, Windows, Windows 3.xSierra On-Line, Inc.3.77
Shivers Two: Harvest of Souls1997Windows, Windows 3.xSierra On-Line, Inc.3.52
Lighthouse: The Dark Being1996DOS, Macintosh, Windows, Windows 3.xSierra On-Line, Inc.3.66
Rama1996DOS, Macintosh, PlayStation, WindowsSierra On-Line, Inc.3.45
Phantasmagoria: A Puzzle of Flesh1996DOS, WindowsSierra On-Line, Inc.3.61
Leisure Suit Larry: Love for Sail!1996DOS, Macintosh, Windows, Windows 3.xSierra On-Line, Inc.3.82
Torin's Passage1995DOS, Macintosh, Windows, Windows 3.xSierra On-Line, Inc.3.89
Roberta Williams' Phantasmagoria (Deluxe Limited Edition)1995DOS, WindowsSierra On-Line, Inc.5.00
Roberta Williams' Phantasmagoria1995DOS, Macintosh, SEGA Saturn, Windows, Windows 3.xSierra On-Line, Inc.3.49
The Beast Within: A Gabriel Knight Mystery1995DOS, Macintosh, Windows, Windows 3.xSierra On-Line, Inc.4.03
Shivers1995Macintosh, Windows, Windows 3.xSierra On-Line, Inc.3.64
Space Quest 6: Roger Wilco in the Spinal Frontier1995DOS, Macintosh, Windows, Windows 3.xSierra On-Line, Inc.3.80
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Selected Covers

Shivers Windows Front Cover
Front cover for Shivers

Selected Screenshots

title screen
Screenshot from Shivers
Title screen
Screenshot from Torin's Passage