Multiplayer games for PC/Windows with 4-player online support
Hammerwatch
Players: 4 local, 4 online
Left 4 Dead 2
Players: 2 local, 4 online
Overcooked! 2
Players: 4 local, 4 online
Full Metal Furies
Players: 4 local, 4 online
Valheim
Players: 0 local, 10 online
Diablo II
Players: 0 local, 8 online
Risk of Rain
Players: 4 local, 4 online
Titan Quest: Anniversary Edition
Players: 0 local, 6 online
Farming Simulator 15
Players: 0 local, 16 online
Baldur's Gate: Enhanced Edition
Players: 0 local, 6 online
Sea of Thieves
Players: 0 local, 4 online
Ranch Simulator
Players: 0 local, 4 online
Muck
Players: 0 local, 8 online
Goat Simulator 3
Players: 4 local, 4 online
Dying Light
Players: 0 local, 4 online
Operation Flashpoint 2: Dragon Rising
Players: 0 local, 4 online
Grim Dawn
Players: 0 local, 4 online
Castle Crashers
Players: 4 local, 4 online
Left 4 Dead
Players: 2 local, 4 online
Neverwinter Nights
Players: 0 local, 4 online
Icewind Dale 2
Players: 0 local, 6 online
Men of War
Players: 0 local, 4 online
Swat 4
Players: 0 local, 8 online
Son of Nor
Players: 2 local, 4 online
Elite: Dangerous
Players: 0 local, 4 online