The Sith Engine was a game engine developed by LucasArts. The game Star Wars: Jedi Knight: Dark Forces II was based on that engine, and its expansion, Star Wars: Jedi Knight: Mysteries of the Sith, on a slightly updated version. Updated and altered versions of the engine can also be seen in Star Wars: DroidWorks. Star Wars: The Phantom Menace, and Indiana Jones and the Infernal Machine. It was also imported to Grim Fandango, as a part of the GrimE engine.