Here are listed all mods, for games not a part of the Thief series. For example The Dark Mod is a Doom 3 mod.
“Update:(9 Oct 2013) The Dark Mod 2.0 is now completely standalone, which means you no longer...The Dark Mod
“A Thief-themed card game made in Flash, similar to Magic:The Gathering, but with its own set of...Magic Gauntlet Karath-Din
“Thieves Arsenal, by Paul Connelly, is a mod for The Elder Scrolls IV: Oblivion and Oblivion...Thieves Arsenal
“Thievery is the name of the project that hopes to bring the award-winning gameplay and style of...Thievery