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 $104.9K — a different platform, not this one.

Koira

Koira is a wholesome tale of friendship where you and your new puppy traverse a musical forest, solve ancient puzzles, befriend woodland creatures, and try to find your way home. Avoid danger along the way, as hunters lurk in the shadows... Bond with your new friend: feed it, take care of it, and play with it! Traverse shaded groves, snowy hills, dark caves, and more. Outsmart the relentless hunters using stealth and bravery. Support each other to restore an ancient forest and activate its mysterious monuments. Meet and help the animals of the forest.