Multiplayer action games with 2-player online support

Damnation

Players: 2 local, 0 online

Lost Planet 2

Players: 4 local, 0 online

Red Dead Redemption

Players: 8 local, 360 online

Unreal Tournament 3

Players: 4 local, 0 online

Dynasty Warriors 8: Empires

Players: 2 local, 0 online

Unrailed!

Players: 4 local, 0 online

Monaco: What's Yours is Mine

Players: 4 local, 0 online

Soul Sacrifice

Players: 4 local, 0 online

Bulletstorm: Full Clip Edition

Players: 4 local, 0 online

Hard Corps: Uprising

Players: 2 local, 360 online

Osiris: New Dawn

Players: 25 local, 0 online

Dead Rising 2: Case West

Players: 2 local, 360 online

Crackdown

Players: 2 local, 360 online

Wolf of the Battlefield: Commando 3

Players: 3 local, 0 online

Retrovirus

Players: 2 local, 0 online

Insanely Twisted Shadow Planet

Players: 4 local, 360 online

Zombie Apocalypse

Players: 4 local, 0 online

Dynasty Warriors 7: Empires

Players: 2 local, 0 online

Earth Defense Force 4.1: The Shadow of New Despair

Players: 4 local, 0 online

Splinter Cell: Double Agent

Players: 3 local, 360 online

Gunstar Heroes

Players: 2 local, 360 online

Aces of the Galaxy

Players: 2 local, 360 online

Grand Theft Auto V

Players: 8 local, 0 online

Dynasty Warriors 7

Players: 2 local, 0 online

Knight Squad

Players: 8 local, 0 online