QUAKE 4

[Ginsu Moose]

Mankind VS The Strogg

Nothing that makes it different from the other games out there, but an RPG maybe?

 

[Pauly_D]

i voted yes but i would rather see a Doom RPG that would be so cool

 

[LoneStranger]

I think both of those could be done as sourcebooks for D20 Modern. Shouldn't be too hard I would think.