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 $34.3K — a different platform, not this one.

Trifox

The free demo version of Trifox is available on GOG.COM. You can download it here After his home is attacked and his TV remote stolen, Trifox sets out in pursuit of the mysterious looters in an action-packed adventure. Use magic, might, and marvelous gadgets to outfox foes across four danger-filled worlds as you fight your way to a final showdown at Villain HQ! Key Features Three different classes: Wield a giant hammer as a Warrior! Master magic and mystery as a Mage! Use a backpack full of gadgets as an Engineer! Mix-and-match styles: Customise your Trifox by combining different class-based abilities! Want to cast spells and fire a Gatling Gun? No problem! 30 abilities to unlock: Collect and spend coins to gain new skills, such as Spike Slam, Shield Bubble, Guided Missile, and many more! Four worlds to beat: Fight hordes of enemies, traverse platforming pitfalls, overcome environmental puzzles, and battle big angry bosses! A modern retro adventure: A new and fresh experience designed to evoke the spirit of classic 3D platformers!