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 $263.5K — a different platform, not this one.
GALAK-Z
Also onPlayStationSteam
Prepare for the bar to be raised on deep-space 2D dog-fighting! GALAK-Z is a modern, A.I. and physics-driven open-world action game, viewed through the lens of the classic 16-bit space shooter. Powered by the next-generation Cyntient AI platform, GALAK-Z puts players in control of anime-inspired spacecraft inhabiting procedurally generated worlds. In GALAK-Z both stealth and skill are required to defeat truly intelligent enemies. You will be forced to outsmart enemies that think, react and cooperate like seasoned pilots! Master your ship’s sublimely-honed controls as you blast enemies, unleash missile salvos, and even toss your opponents, mech-style, to their explosive demise. New features include Arcade Mode which lets you replay failed missions any number of times without losing all of your saved progress. Rogue Mode retains GALAK-Z’s original white-knuckle roguelite challenge that harkens back to the 16-bit era of gaming. Rogue mode will always be available if and when you’re looking to test your skill and bravery by putting everything on the line, every mission. Players will be forced to outmaneuver, outgun and outsmart enemies that think, react and cooperate like seasoned pilots. Both stealth and skill are required to defeat enemy squads in a brutal game of cat and mouse. Prepare for an enemy that comes alive like never before! New ARCADE mode with per-Mission checkpoints! Procedurally-assembled levels Physics based combat simulator! Advanced enemy A.I for intense dogfights! Scripted missions and ‘roguelite’ structure Resource-based, progressive weapons system Inspired by 70s / 80s anime and arcade shooters