System Shock 2, Thief 2, Thief Gold (supported) and the editor DromED, got a massive update.
http://www.ttlg.com/forums/showthread.php?t=140085
The really strange thing is, it isn't some normal fan patch where they toss in a few hacks and config tweaks here and there, but a patch that modifies the game engine on a source code level. That can't normally be feasibly accomplished without access to said code, especially by fans.
This patch was released on a French forum by a user known as Le Corbeau (translates to Crow, which itself translates to Corvo, protagonist of Dishonored). Some of you may know that Dishonored is developed by the France-located Arkane studios, which proudly houses a number of ex-Looking Glass Studios people. Key people at that.
Promotion for Dishonored?