No revenue estimate for PSN — its rating/review counts don't calibrate to sales the way Steam's do. The Steam version is estimated at $2.7M — a different platform, not this one.

Gas Guzzlers Extreme

Gas Guzzlers Extreme is a fast, furious, armed-to-the-teeth, trigger-happy shooter, shifted into top gear! Take a white knuckle ride in this crazily addictive combat racing game that features a ton of vehicles, weapons, upgrades, on-track bonuses, environments and a zombie apocalypse! Start out with a low performance vehicle and soon work your way up to high-performance models. New game modes, tracks and vehicles are unlocked as you progress through the game. • Combat racing at its best, featuring a blood pumping single player campaign with over 12 hours of gameplay. • 350+ miles of road across 42 tracks, 12 arenas and 8 different environments. • 12+ unique weapons, on-track bonuses and power ups. • 21 customizable cars (12+ upgrades, color, rims, stickers, etc.). • Multi-path tracks and sponsored events.