I couldn't think of anything related to wastleland, space, or future.
Borderlands?
That would fit in with TF2 silly moose.
What i'm trying to say is a theme that would fit in with TF2.
If TF2 isn't an rpg. Then what category does Fallout 3 fit in?
The Force-a-Nature is a primary weapon and the Dead Ringer is a watch.And they're PC exclusives because PCs are infinitely better than consoles when it comes to FPS games.
RPG.
But it plays like a shooter.