Multiplayer first person shooter games for PC/Windows with 4-player online support
DOOM II
Players: 0 local, 4 online
Arizona Sunshine
Players: 0 local, 4 online
Borderlands: Game of the Year Edition
Players: 0 local, 4 online
Shotgun Farmers
Players: 0 local, 4 online
Quake (Enhanced)
Players: 4 local, 4 online
Sniper Elite 5
Players: 0 local, 4 online
Ghostbusters: Spirits Unleashed
Players: 0 local, 4 online
Starship Troopers: Extermination
Players: 0 local, 16 online
Crime Boss: Rockay City
Players: 0 local, 4 online
Guardians Frontline
Players: 0 local, 4 online
Echo Point Nova
Players: 0 local, 4 online
Deep Rock Galactic
Players: 0 local, 4 online
Gunfire Reborn
Players: 0 local, 4 online
Warhammer: End Times - Vermintide
Players: 0 local, 4 online
Dead Island Definitive Collection
Players: 0 local, 4 online
Borderlands 2
Players: 0 local, 4 online
Duke Nukem 3D Megaton Edition
Players: 0 local, 8 online
Blood and Bacon
Players: 0 local, 4 online
Duke Nukem 3D: 20th Anniversary Edition World Tour
Players: 0 local, 8 online
Left 4 Dead 2
Players: 2 local, 4 online
Left 4 Dead
Players: 2 local, 4 online
Warhammer: Vermintide 2
Players: 0 local, 4 online
Unreal Tournament 3
Players: 0 local, 4 online
Serious Sam: The First Encounter
Players: 4 local, 16 online
DOOM 3: OpenCoop (Mod)
Players: 0 local, 4 online