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 $1M — a different platform, not this one.
Star of Providence
Descending in the darkness of a long-abandoned facility, a lone ship searches for wealth, power and the scattered pieces of the past. Star of Providence is a top down action shooter with procedurally generated elements. Explore a progression of floors as you make your way into the depths of the facility, encountering increasingly deadly enemies, fantastic weapons, upgrades, choices and revelations as you venture deeper towards a great and calamitous power. Features: Smooth, gracious, fast action gameplay, tailored to feel good to play. 13 different types of weapons with over 50 unique modifiers and a ludicrous number of combinations. A number of floors with their own layouts, traps and enemies. Intricate and energetic chiptune soundtrack to complement the beat of the action. The game now comes with the previously paid DLC, Relics of the Past, for free! New enemies! New hazards! New bosses! Over 2000 new room layouts! Two new floors! The elusive Temple and the overflowing b0unds o. -$556/-err Looping! Every game loop beaten unlocks a yet harder one. Over 40 unique weapons! Rare, powerful and different spins on the default armaments. Cartridges! Utilize the power of over 40 ancient, bootleg storage devices. Blessings! The council lends their strength. Choose wisely. Practice mode! Test your mettle, practice any boss you've faced. New playable characters! Yes. Hacking! Finally. May Power Eternal grant you everlasting life.