A new Gears of War game was heavily rumored to be revealed at this year's Xbox Games Showcase, and that's just what we got. Gears of War: E-Day is a prequel that allows players to take control of Marcus Fenix, the original Gears series protagonist, as he endures the series' famous Emergence Day event. We don't have any gameplay details yet, but E-Day is likely to feature campaign co-op and a cooperative Horde mode.