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 $264.5K — a different platform, not this one.

The Great Rebellion

In this Cyberpunk-inspired run'n'gun-roguelite the world is controlled by technocratic elites who seek digital immortality and transcend their human bodies and they will stop at nothing to achieve their goal.  Fight through randomly generated levels in glorious 16bit-style retro pixel art and listen to an awesome dynamic soundtrack while you blast away robots using one of 60 weapons. Upgrade your character, find items, unlock allies that will help you and find the spirits of European heroes that will give you special powers. Now it is your turn to join the Great Rebellion!    Immerse yourself in the dystopian Europe of the year 20XX, where the Lucis Lux Mega-Corporation owns everything and the people own nothing. You play the role of Human 10.28, a man who decides he had enough. He doesn't want to be a cog in the soul-destroying system anymore and takes up the fight against a seemingly all-powerful enemy!