Multiplayer real-time strategy games for Xbox 360 with 2-player online support
Halo Wars
Players: 0 local, 2 online
Command & Conquer 3: Tiberium Wars
Players: 0 local, 4 online
Age of Booty
Players: 4 local, 4 online
A World of Keflings
Players: 2 local, 4 online
Command & Conquer: Red Alert 3
Players: 0 local, 2 online
Star Trek: Legacy
Players: 0 local, 4 online
Supreme Commander
Players: 0 local, 3 online
Darwinia+
Players: 0 local, 4 online