Doesn't this seem pathetic to you?

[Wyrd of Gawd]

He creates people to worship him, and screws up. He kills everyone to start almost completely over, but it still doesn't work. He decides he's just going to commit genocide on some tribes, and it still doesn't work. He kills himself, and it still doesn't work. It's almost like killing people doesn't actually solve the problem, but that's all he knows.

Killing makes him happy. He gets ticked off, and demands blood be spilled to get him in a good mood. Innocent blood. Eventually that stopped working, so he decided to kill himself so he could get high off his own blood, though it's not burned like normal sacrifices. When he eventually comes down from that high, he'll come back and kill most of Earth's population again. All that will be left is worshipers, and the sweet smell of the burned flesh of the damned in hell.

Blood for the blood god! Skulls for the skull throne!

That's a very good and concise summary of the fairy tale.