No revenue estimate for GOG — its rating/review counts don't calibrate to sales the way Steam's do. Reviews and prices only.

Serial Cleaner

Can you dig it? Step into the polished shoes of The Cleaner, a professional crime scene cleaner for the mob. There's no business like the cleaning business, and right now business is booming… Sneak around crime scenes avoiding detection from the guarding cops as you vacuum up blood, hide bodies and remove evidence in this 70's styled, fast paced, 2D action/stealth game.