Thief Gold is a re-release of Looking Glass Studios' Thief: The Dark Project computer game.
In addition to various bug fixes, Thief Gold added three new levels (mostly derived from, but not identical to, content which was planned for the original game but cut for budget or time constraints) which contributed significantly to the existing plot. The package also contained the DromEd Thief editor as well as a behind-the-scenes "making of" video.