Multiplayer first person shooter games for PC/Windows with 4-player online support
Synergy (HL2 mod)
Players: 0 local, 16 online
Starship Troopers
Players: 0 local, 8 online
Team Fortress 2
Players: 0 local, 6 online
DOOM 3: Last Man Standing (Mod)
Players: 0 local, 16 online
Mission Against Terror
Players: 0 local, 8 online
AirBuccaneers
Players: 0 local, 16 online
Interstellar Marines
Players: 0 local, 4 online
Space Hulk: Deathwing
Players: 0 local, 4 online
Sniper Elite 4
Players: 0 local, 4 online
Aliens vs Predator (1999)
Players: 0 local, 4 online
Vietcong
Players: 0 local, 4 online
God Mode
Players: 0 local, 4 online
Dead Island
Players: 0 local, 4 online
Tom Clancy's Ghost Recon Breakpoint
Players: 0 local, 4 online
Combat Arms
Players: 0 local, 8 online
Serious Sam HD: The First Encounter
Players: 0 local, 16 online
Star Trek Elite Force 2 (HZM Co-op Script Mod)
Players: 0 local, 12 online
The Darkness II
Players: 0 local, 4 online
Call of Duty: Black Ops
Players: 0 local, 6 online
Aliens vs Predator
Players: 0 local, 4 online
Painkiller Resurrection
Players: 0 local, 4 online
Serious Sam HD: The Second Encounter
Players: 0 local, 16 online
Conflict: Vietnam
Players: 0 local, 4 online
ORION: Prelude
Players: 0 local, 5 online
Aliens: Colonial Marines
Players: 0 local, 4 online