Might not be the right forum but, As a recovering TDM addict, I thought it'd be useful to call attention to some games that have helped me get past my withdrawal symptoms, at least until the next release!
1.) STALKER Anomaly, Wind of Time, Spatial Anomaly...etc
2.) Enderal
3.) Aliens Colonial Marines TemplarGFX - still too short!
4.) Prey
5.) Ruiner - arcadey, but works
6.) Thief 2 - Shadows of the metal age
7.) Deus Ex - GMDX, Nihilum, etc