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 $4.1M — a different platform, not this one.

Flotsam

Turn ocean garbage into homes, workshops and colorful little gardens. Collect floating plastic and driftwood, salvage scraps of the old world, and recycle them into homes that stay afloat. Desalinate water, gut fish and board up a shelter to keep everyone safe Decorate your town with plants, refurbished furniture and statues that keep your drifters happy. Set sail to explore the flooded world, from soaked ruins to forgotten islands, and discover what still floats beyond the horizon. Explore flooded remnants of the old world Rescue stranded survivors and friendly animals Re-discover old technology to improve your town. But be careful your drifters don’t get sick. The old world is polluted! Your drifters each have their own stories to tell. Recruit specialists who unlock new buildings, quests, and discoveries for your floating community. Find unique drifters like the Birdkeeper, Chemist, and Electrician Unlock new technologies and story quests through their expertise Complete personal storylines to unlock new mechanics Develop cleaner, smarter systems that turn waste into progress and keep your floating town thriving in this feel-good apocalypse. Research new tech to transition from burning firewood to green eel-ectricity generation. Build connected production pipelines that turn your floating town into a self-sustaining ecosystem. Clean food and develop cures for pollution-born diseases and keep your drifters healthy and productive