Sierra Creative Interpreter

Sierra Creative Interpreter
Original authors
  • Jeff Stephenson
  • Robert Heitman
DeveloperSierra On-Line
Initial releaseSeptember 1988 (1988-09)
Final release
3.000.000 / November 30, 1996 (1996-11-30)
Operating systemMS-DOS, Windows, Classic Mac OS, AmigaOS, Atari TOS
PlatformIntel 8088, x86, Mac, Amiga, Atari ST
Available inEnglish
TypeGame engine
LicenseProprietary software

The Sierra Creative Interpreter (SCI) was a game engine developed by Sierra On-Line in the late 1980s as a successor to the earlier AGI (Adventure Game Interpreter) engine. SCI first appeared with King’s Quest IV in 1988 and powered many of Sierra’s adventure games through the 1990s. It introduced higher-resolution graphics, a point-and-click interface, a more sophisticated scripting language, and support for richer audio and animation.