Hey all, Ghost dropping by again.
Hope none of you had given up on me ever showing myself here again.

After having finished Return to Castle Wolfenstein I am really in the mood for a decent sci-fi ish FPS game again, but unfortunate I have played all the best known ones such as its sequel Wolfenstein 2009, Jedi Knight Outcast and Academy, Elite Force 1 and 2, DSN The Fallen, Singularity, Half Life games (of course), Doom 3 and expansion, Quake 4, and even FPS like games such as Deus Ex, Invisible War, Human Revolution, The Fall.

Are there any decent FPS games I may have overlooked that are worth playing?
Please don't recommend Wolfenstein The New Order, for personal reasons I don't like that game but I do intend to play its stand alone expansion pack The Old Blood.

I also have Far Cry Blood Dragon but I don't want Uplay on my PC.

Oh and just in case, yes, I have played all the Mass Effect games, Dead Space 1, Aliens Colonial Marines (Alien Isolation but that is not really a FPS).

Hope people have some recommendations.