No revenue estimate for GOG — its rating/review counts don't calibrate to sales the way Steam's do. Reviews and prices only.

Odallus: The Dark Call

The "Veteran Mode" update includes a new difficulty, Veteran Mode, to the game which becomes available after beating the game! The old gods have forgotten this land. No one could save our people when darkness started spreading and collecting human souls for its army. Odallus is a classic exploration/action game, inspired by Ghosts’n Goblins, Demon’s Crest and Castlevania. Player takes place of Haggis, a warrior tired of fight who must wield his sword once more to rescue his son from Darkness. Eight levels open to exploration Stunning 8-bit graphics Dark fantasy atmosphere 8+ hours of gameplay 50+ types of enemies