Multiplayer action games for PC/Windows with 4-player support

Lovers in a Dangerous Spacetime

Players: 4 local, 0 online

Conflict Global Terror

Players: 0 local, 4 online

TowerFall Ascension

Players: 4 local, 0 online

Nine Parchments

Players: 4 local, 4 online

Risk of Rain 2

Players: 0 local, 4 online

Total Annihilation

Players: 0 local, 10 online

Lost Planet 2

Players: 0 local, 4 online

Alien Swarm (MOD)

Players: 0 local, 4 online

Starlancer

Players: 0 local, 4 online

Corgi Warlock

Players: 4 local, 0 online

Final Exam

Players: 2 local, 4 online

Sven Co-Op

Players: 0 local, 32 online

Thief II: The Metal Age

Players: 0 local, 0 online

7 Days to Die

Players: 0 local, 64 online

Gears 5

Players: 3 local, 5 online

Monaco: What's Yours is Mine

Players: 4 local, 4 online

Unrailed!

Players: 4 local, 4 online

Osiris: New Dawn

Players: 0 local, 25 online

Grand Theft Auto V

Players: 0 local, 8 online

Attack on Titan

Players: 0 local, 4 online

HAWKEN

Players: 0 local, 6 online

Think of the Children

Players: 4 local, 0 online

Raiders of the Lost Island

Players: 4 local, 0 online

Guns of Icarus Alliance

Players: 0 local, 16 online

Tools Up!

Players: 4 local, 0 online