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

Reus

In Reus, you control powerful giants that help you shape the planet to your will. You can create mountains and oceans, forests and more. Enrich your planet with plants, minerals and animal life. There is only one thing on the planet that you do not control: mankind, with all their virtues and and all their vices. You can shape their world, but not their will. Provide for them and they may thrive. Give them too much and their greed may get the upper hand. Control four mighty giants, each with their unique abilities. A complex system of upgrades and synergies allows for endless styles of play. Observe humanity, let your giants praise or punish them. Enjoy an interesting art style and a strong soundtrack.