Ive read he makes currently around 250.000€ dayly (presales)!
And the Game is not even Beta yet.
That would beat even any AAA Title sales I know of.
(remember he has almost no costs to repay)

This is epic.

Some small recent games of mine:
Griefer 4k http://damocles11.byethost9.com/griefer4k.html
Kobold 4k http://damocles11.byethost9.com/kobold.html
Cave 4k http://damocles11.byethost9.com/cave4k.html