Know any single player sci-fi first person games for PC?

[GreenBones]

Besides anything related to:

- Area 51
- Bioshock
- Crysis
- Fallout
- Deus Ex
- Doom
- Duke Nukem
- Gunman
- Half-Life
- Halo
- Metroid
- Outcast
- Robocop
- Star Trek
- Star Wars
- System Shock
- Unreal
- Quake

 

[LibNemesis]

FEAR 2&3, Mass Effect