Multiplayer games for PC/Windows with 2-player online support

MechWarrior 4

Players: 0 local, 5 online

7 Days to Die

Players: 0 local, 64 online

Halo: The Master Chief Collection

Players: 0 local, 4 online

Men of War: Vietnam

Players: 0 local, 4 online

Victor Vran

Players: 2 local, 4 online

Serious Sam 2

Players: 4 local, 6 online

ArmA III

Players: 0 local, 16 online

Inversion

Players: 0 local, 2 online

Project Zomboid

Players: 4 local, 32 online

Rune

Players: 0 local, 16 online

Necropolis

Players: 0 local, 4 online

Faces of War

Players: 0 local, 4 online

Raven Squad

Players: 0 local, 2 online

Saints Row IV

Players: 0 local, 2 online

Icewind Dale: Enhanced Edition

Players: 0 local, 6 online

Streets of Rogue

Players: 4 local, 4 online

Gears 5

Players: 3 local, 5 online

Minecraft Dungeons

Players: 4 local, 4 online

20XX

Players: 2 local, 2 online

Mercenary Kings

Players: 4 local, 4 online

The Binding of Isaac: Rebirth

Players: 2 local, 4 online

Dark Souls: Remastered

Players: 0 local, 4 online

Remnant II

Players: 0 local, 3 online

Gauntlet

Players: 4 local, 4 online

Quake

Players: 0 local, 16 online