No revenue estimate for XBOX — its rating/review counts don't calibrate to sales the way Steam's do. The Steam version is estimated at $10.9M — a different platform, not this one.

Halo: Campaign Evolved

Halo: Campaign Evolved is a faithful yet modernized remake of Halo: Combat Evolved’s campaign, rebuilt from the ground up – now with HD visuals, refined controls, up to 4-player online co-op, 3 new missions, & an expanded arsenal of weapons, vehicles, & new enemies.