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 $102.8K — a different platform, not this one.

Grim Nights

A survival strategy indie-game. Gather resources, expand your village, explore the underground for riches and train soldiers... ... to defend against hordes of the undead! Features: A roughly 7-8 hour long single player experience. (With the option to continue as long as you please) Three different maps. Random generated faces, names and abilities for your villagers. 11 different unit types to train. 15 unique enemies. Three unique bosses. RTS, Tower Defense and Management elements. Also: This game is hard. You will most likely lose a few times, no matter what setting you choose, before getting it right. You have been warned. And also: People have been asking about the music, so here is a link to the talented artist: https://www.youtube.com/vindsvept