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 $112.1K — a different platform, not this one.

Union of Gnomes

Behold a quirky fairy tale set in the revolutionary times of a far far away kingdom.    Embark on the challenging journey to lead the gnome’s uprising, stand against Snow White’s oppressive rule, assemble your liberation forces, and bring freedom to this land.    Free your gnome comrades to bolster your squad with the best freedom fighters. Experiment with the lineup to reveal powerful synergies and combos with 130 cards that will either hit, poison, weaken, blind your enemies, or get your gnomes drunk…    Pick one of three plucky gnome heroes with unique traits, distinctive decks, and special abilities to slay the slavers. Enhance them between game runs to perfect your build.    Take down the ferocious enemies from different fairy tales, including the Red Hood, Wizard of Oz, Pinocchio, or Snow White herself. Mind your foes' positioning and get the upper hand by using devastating effects, like destroying their spirit by showing them a tiny gnome’s butt.    In Union of Gnomes, there are…    3 gnome heroes, 130 cards to use in your deck, and 24 different effects to throw into your enemies or gnomes' faces.  19 fairy-tallish bosses to beat, and dozens of regular enemies to slay.  6 acts of pure revolutionary story with quirky quests and hidden stories.  Story mode, along with the infinite gameplay Neverending Nightmare mode.  ONE HUGE MYSTERY TO UNCOVER!