Multiplayer action games with 2-player online support

ToeJam & Earl in Panic on Funkotron

Players: 2 local, 0 online

Soul Sacrifice Delta

Players: 4 local, 0 online

Probably Archery

Players: 5 local, 0 online

Over 9000 Zombies!

Players: 2 local, 0 online

Knight Squad

Players: 8 local, 0 online

Dynasty Warriors 8: Empires

Players: 2 local, 0 online

Earth Defense Force 2: Invaders from Planet Space

Players: 4 local, 0 online

The Forgettable Dungeon

Players: 4 local, 0 online

Dynasty Warriors 8: Empires

Players: 2 local, 0 online

Dead Rising 2: Off the Record

Players: 2 local, 0 online

Dead Rising 2: Off the Record

Players: 2 local, 0 online

Drunk-Fu: Wasted Master

Players: 8 local, 0 online

Geneshift

Players: 4 local, 0 online

Samurai Gunn 2

Players: 2 local, 0 online

Door Kickers: Action Squad

Players: 2 local, 0 online

Door Kickers: Action Squad

Players: 2 local, 0 online

MORDHAU

Players: 6 local, 0 online

Knight Squad

Players: 8 local, 0 online

Totally Reliable Delivery Service

Players: 4 local, 0 online

One Piece: Pirate Warriors

Players: 2 local, 0 online

GIBZ

Players: 4 local, 0 online

Unrailed!

Players: 4 local, 0 online

Insania

Players: 4 local, 0 online

Innchanted

Players: 4 local, 0 online

Lara Croft and the Guardian of Light

Players: 2 local, 0 online