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 $57.5K — a different platform, not this one.

Helldorado

1883, SANTA FE. Peace in this town has been shattered by a shocking kidnapping. Gather your men and ride on a series of challenging missions to stop treacherous, marauding outlaws in this story of vile blackmail and revenge. Capture a train load of loot, dodge through saloon fights, a jail-break, and shoot-outs! The stage is set for this Wild West Adventure. Will you live to tell the tale? Wild West: Experience truly authentic Wild West locations on the PC, from a stormy rain robbery to bloody sunsets and beautiful old New Orleans, and more Smart Enemies: 60 different enemies with tactical behavior driven by an advanced AI system Multi-character game play: Play as six different characters, each with different specialist skills, abilities, and weaponry Movie Mode: Record your heroic deeds! Historical Weapons and Equipment: 6-shooter pistol, shotguns, rifle, bow and arrow, derringer, knifes, tomahawks and other weapons found in an 1880's arsenal Technology: Switch between tactical view and actions view seamlessly, Bloom and HDR rendering, PhysX technology