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 $34.3M — a different platform, not this one.

Foundation

Foundation is a gridless medieval city builder where you create modular buildings, shape organic cities and manage its villagers!     BUILD THE ORGANIC MEDIEVAL CITY OF YOUR DREAMS   Foundation combines free-building tools and procedural generation to create the ultimate organic city-building experience.    MANAGE YOUR VILLAGE AND MAKE IT COME TO LIFE   Assign jobs, create production chains, establish trade. In Foundation, your creations come to life!  PLAY AT YOUR PACE, RELAX AND ENJOY THE VIEW!   Foundation offers various difficulty levels, so you can play the way you want! Choose an Aspiration to discover new ways to play, or just play in Creative mode, relax and enjoy the view!   FEATURES An advanced gridless City Building experience, with unlimited generated maps and almost no construction constraints. Free-building tool: Create modular buildings from individual parts, beautify and transform them into majestic monuments! Organic development with our unique Painting tool: Guide your villagers by defining areas for building homes, decide where to pave roads and set patrols, designate forest extraction zones, and more! Manage your village: Develop production chains, tax your villagers, trade with neighboring villages, or fight for the King. There are multiple ways to create a successful economy! Progress with the three Estates of the Realm: Three distinct progress paths await you: Labor , Clergy or Kingdom . You can either specialize in one or combine all three. Tailor your gaming experience: Select an Aspiration, adjust the difficulty level or build without constraints by playing in Creative Mode. Full modding integration! Foundation Original Soundtrack: Immerse yourself in over 100 minutes of atmospheric medieval music crafted by the award-winning composers at Audinity. and much more!