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

Zombie Vikings

Players: 4 local, 4 online

Zheros

Players: 0 local, 2 online

Zedfest

Players: 0 local, 4 online

The Past Within

Players: 0 local, 2 online

ANVIL: Vault Breakers

Players: 0 local, 3 online

Rogue Continuum

Players: 4 local, 4 online

OpenTTD

Players: 0 local, 255 online

Destroyer Command: WWII Naval Combat Simulator

Players: 0 local, 6 online

Color Breakers

Players: 4 local, 4 online

GROUND BRANCH

Players: 0 local, 8 online

Overcooked! All You Can Eat!

Players: 4 local, 4 online

Puzzle Together

Players: 0 local, 6 online

Dark Souls 2: Scholar of the First Sin

Players: 0 local, 6 online

A Kingdom For Keflings

Players: 0 local, 4 online

Orbital Strike VR

Players: 0 local, 2 online

Pit People

Players: 2 local, 2 online

Meltdown

Players: 0 local, 4 online

Gensokyo Defenders

Players: 0 local, 2 online

Usurpator

Players: 0 local, 8 online

The Walking Zombie: Dead City

Players: 0 local, 2 online

SMITE

Players: 0 local, 5 online

Gun Skaters

Players: 4 local, 4 online

Cavebound

Players: 0 local, 4 online

Desecrators

Players: 0 local, 4 online

Zombie Party

Players: 4 local, 4 online