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 $65.6K — a different platform, not this one.

Second Sun

WELCOME TO SECOND SUN, A PASSION PROJECT BY AN INDIE DEV TEAM     A civil war rages between the Empire and the Order of the Second Sun. The land has been ravaged and the Empire is on the verge of ruin. Hope is dwindling rapidly, as the Good Sun's light dims. You are a Sunborn, a warrior with special abilities, tasked with protecting the Empire. All hope is on you to win the war. The Empire expects great things of you.     Fight off enemies using your class abilities, weapons, and, above all, your skills in this Hi-octane FPS RPG. Combat is fast-paced and relies on movement. Enemies will claw at you, shoot at you, and chase you. Will you be able to fight your way through them before it is too late?     Kill, loot, and upgrade your gear. Second Sun has a clear progression system which keeps every kill exciting. Every enemy drop and every chest could contain a crucial item for your quest. The stats you want to focus on and how you want to build your Sunborn are up to you.     A carefully crafted world with an impressionist character. Relish the beautiful surroundings and remember why you’re fighting - to bring the Good Sun’s light back. Second Sun uses a mixture of an open map with elements such as procedurally generated enemy placements, points of interest, loot, and dungeons to make every encounter unique and exciting!     Enjoy the fast-paced combat Battle your way through the randomly generated dungeons Fight, loot and upgrade your gear and abilities Explore a beautifully crafted open map Customise your character, choose your class and join the Empire!