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 $24.4K — a different platform, not this one.

Nongunz: Doppelganger Edition

Demo version of Nongunz: Doppelganger Edition is available here Unveil the mystery behind the nihilistic universe of Nongunz Hundreds of levels plagued with dozens of different enemies Unforgiving gameplay that will challenge both your skill and your wits Intense run-and-gun combat Card based perk system granting you powerups and passive stats such as speed boost and bigger bullets Many weapons, items and equipment to unlock and master The unyielding pressure of your own mortality A kill-chain combo meter to keep you forever moving forward The everpressing guilt of your past wrongs.