one of the low key best games of all-time. just an unparalleled sense of atmosphere, and the levels strike a great balance between being immersive and realistic-feeling but relatively simple and approachable in a way that i don't even think has been exactly replicated. and then even with a tight and unique mechanics the missions go places you just don't anticipate at all. it really feels like an adventure where you don't know where you're going to go next. the sequel might have (arguably) improved some of the mechanics but doesn't have as much of that mystery. the only real flaw is it peters out a bit at the end - some of those ending missions feel rushed and don't quite work. but that is not unusual for PC games of that era.

(i'm reviewing this version because i think Song of the Caverns was the only essential added mission for Thief Gold, but consider it the same rating for both)