We live in a rural area, so anything that's only online/MMO is no go. Our favourite kinds of games are ones that can be played LAN, with bots co-op or VS.
Our main games we play are: Star Wars Battlefront 2
Payday 2
Killing Floor
Left 4 Dead 2 (Kinda, I don't really like it)
Sanctum 1 + 2
Rainbow Six Vegas 2
So any kind of games in that league. Nothing online, like DOTA or League of Legends, we can't play them. Not Civ 5, as we don't like it. Sorry we're so specific
Cheers,
Pietus
Added (1). Also, we play on PC