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 $2.4K — a different platform, not this one.

Crown of Pain

Crown of Pain is a match-3 RPG. Heroes venture to the castle to find the elusive crown of pain, an artifact which is said to take away all of their worries.    In this gritty match 3 RPG, take the role of the hero, each with their own troubles, looking for a solution, a way out of hardship. Driven by their worries, they decide to take on something that they might not be able to handle. Features Your team is very varied and the hero actions differ based on the color matched. Match the right elements to perform the necessary attack!  Various build opportunities! Combine heroes and select active abilities. Strategize the way you can.  Dark atmosphere of the middle ages: this world has no remorse and no compassion, you are on your own.   Traverse the map, participate in battles, select individual hero upgrades and prepare unique team builds with lots of possible synergies.