Projector Games' Xbox Live Indie Game, heavily inspired by Mojang's Minecraft, had grossed a million dollars from 350,000 copies sold by the beginning of last month. The intervening weeks have taken that total past the 500,000 mark, with the developer taking to Twitter to say: "After only 163 days of being available, I'm incredibly proud for Fortresscraft [to] finally sell that magic half-million; thank you everyone."