"With Undertow, our goal was to create a game that we as gamers would like to play - a full-featured, super fun game that could deliver a completely original new gaming experience for XBLA," said Donald Mustard, creative director at Chair Entertainment Group. "Whether players prefer to dive in to the single player campaign or battle it out in an intense multiplayer match, Undertow offers non-stop excitement for all types of gamers."

The fast-paced action of Undertow features a robust 15-level single player and co-op campaign with two multiplayer modes for up to 16 players. Players navigate the stormy seas as one of four unique, upgradeable unit types ranging in ability from the fast and agile to the large and powerful. Players then earn points for adding upgrades by killing enemies, completing objectives, and taking checkpoints. The non-stop conquest-style battles of Undertow push the envelope of on-screen effects and combat action with stunning graphics and special effects.