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 $457.3K — a different platform, not this one.

Keeper

From Lee Petty and Double Fine Productions, creators of Stacking, Headlander, RAD, and Psychonauts, Keeper is a beautiful and surreal third-person, atmospheric, puzzle adventure, and a story told without words. On an island in a long-lost sea, a forgotten lighthouse stands dormant in the shadow of a distant mountain peak. As withering tendrils spread and coalesce, it awakens. Taken with a mysterious sense of purpose and joined by a spirited seabird, it embarks upon a heartening tale of unlikely companionship, an odyssey of mystifying metamorphosis, and an unexpected journey towards the center of the island, into realms beyond understanding.