It's worth mentioning that Notch began Minecraft as an individual, operating as an individual, so much of that early revenue hits Sweden's ~50% tax rate... But

It's worth mentioning that Notch began Minecraft as an individual, operating as an individual, so much of that early revenue hits Sweden's ~50% tax rate... But yeah, as far as I'm aware Minecraft is far and away the most profitable indie game that owns their own distribution channel (ie no XBLA, Steam, etc involvement).