Can't get enough of the game that "redefined underwater action games"? Well you are in luck! The folks from Chair Entertainment have announced a brand new expansion pack for their game Undertow on the Xbox Live Arcade. It features a brand new 5 mission campaign that is playable via co-op. It also adds a new race, and several new multiplayer maps.
The expansion pack will set you back 400 MS Points...not a bad price when a lot of us got the game for free.