Multiplayer action/adventure games with 2-player online support

Ninja Gaiden 3

Players: 2 local, 360 online

Ninja Gaiden 3: Razor's Edge

Players: 2 local, 0 online

Journey to the Savage Planet

Players: 2 local, 0 online

CastleMiner Z

Players: 8 local, 0 online

Disney Infinity 2.0: Marvel Super Heroes

Players: 4 local, 360 online

Terraria

Players: 4 local, 0 online

Disney Infinity 3.0 Edition

Players: 2 local, 0 online

Knights and Bikes

Players: 2 local, 0 online

Watch_Dogs 2

Players: 4 local, 0 online

ToeJam and Earl: Back In The Groove

Players: 4 local, 0 online

Conan Chop Chop

Players: 4 local, 0 online

Watch Dogs: Legion

Players: 4 local, 0 online

Darksiders Genesis

Players: 2 local, 0 online

The Survivalists

Players: 4 local, 0 online

Tribes of Midgard

Players: 10 local, 0 online

It Takes Two

Players: 2 local, 0 online

It Takes Two

Players: 2 local, 0 online

Ghost of Tsushima

Players: 4 local, 0 online

Terraria

Players: 8 local, 0 online

It Takes Two

Players: 2 local, 0 online

It Takes Two

Players: 2 local, 0 online

It Takes Two

Players: 2 local, 0 online

Void Crew

Players: 4 local, 0 online

Cave Crawlers

Players: 10 local, 0 online

Disney Infinity 3.0 Edition

Players: 2 local, 0 online