No revenue estimate for GOG — its rating/review counts don't calibrate to sales the way Steam's do. The Steam version is estimated at $17.7K — a different platform, not this one.

40 Winks

FIGHT AS A NINJA. TRANSFORM INTO A ROBOT...OR A MONSTER! Fight skeletons, spiders and aliens. Battle with robots, zombies, giant dinosaurs... In this dangerous, dream filled 3D adventure game, everything is out to get you! CAN YOU BEAT THE EVIL DREAM THIEF, THE SCHEMING NITEKAP, AS YOU JOURNEY THROUGH 6 NIGHTMARE WORLDS? 40 Winks is an action platformer where you control brother and sister, Ruff and Tumble. Your goal is to collect 40 Winks scattered around the world to stop an evil man called Nitekap. Nitekap wants to turn the winks into hood-winks who are responsible for giving children nightmares. Game Features: - Transform into different characters! Attack as a stealth ninja, fight as ferocious monster, or fly into action as a super hero! - Tons of mini-games as well! Race dragons, strap on a rocket, and more! - 6 themed levels - a scary castle, shipwreck city, outer space, deep down underwater, back to the prehistoric world of T-Rex and giant wasps and into the nightmare world of ghosts and monsters.