Multiplayer first person shooter games for PC/Windows with 4-player local/couch support
Serious Sam: The First Encounter
4 local, 16 online
Serious Sam 2
4 local, 6 online
Gunscape
8 local, 8 online
Serious Sam 3: BFE
4 local, 16 online
Reload
4 local, 0 online
Killing, My Friend
4 local, 4 online
Space Beast Terror Fright
4 local, 4 online