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 $11.1M — a different platform, not this one.

Dome Keeper

Dome Romantik has grown to become Dome Keeper with beautiful updated pixel art, atmospheric music and sound and more of everything. Defend your dome from wave after wave of hostile attacks in this roguelike survival miner. Use the time between each attack to dig beneath the surface in search of valuable resources. Use them carefully on powerful upgrades to help you stay alive and make it to the next world. Dig Drill tunnels beneath your dome in search of precious materials. Watch the time, you need to get back to the dome and be ready when the next wave of attack comes. How deep will you get this time? How much can you carry back? Defend Take control of the defenses and fend off the alien attacks. Air and ground, slow and fast, the attackers must be prioritized and dealt with before they tear your dome apart. Develop Use your mineral harvest to gain powerful upgrades; improve the strength of your weapon, make your drill more powerful, increase the speed of your jetpack and research other improvements. Find artifacts to give an extra boost to your survival odds.