Don't expect to play through the original Thief exactly as you remember it, though. Due to copyright issues, The Dark Mod cannot use characters, names, locations or any other copyrighted material from the Thief series. Instead, the mod offers community-created, piecemeal missions which take place in an original setting that shares the medieval and steampunk vibe of the original games. It's more of a Thief ho-mod-ge. Buh-dum-tish!
Anyone with a taste for first-person stealth games can now download the game, free of charge, from the Dark Mod website. If you're hungry for an official expansion to the Thief universe, the Eidos Montreal-developed Thief is planning a heist for February of next year.