Today Microsoft detailed what the game will be and when gamers can actually get it. Beginning next Wednesday, January 23, at 2 a.m. and continuing through the following Sunday, January 27, Xbox Live users will be able to download Chair Entertainment Group's Undertow free of charge. Ordinarily available for 800 Microsoft points ($10), Undertow is an action combat game with 15 single-player levels as well as multiplayer action where up to 16 gamers take on different classes and races in an attempt to assert dominance over the waves. Undertow is rated E10+ for Everyone 10 and Older.