The legal battle between Zenimax and Oculus is just the gift that keeps on giving. Now, John Carmack is suing Zenimax for $22 million.

Carmack says that the amount, which is actually in excess of $22.5 million, is the remainder of what he was owed from Zenimax's acquisition of id Software back in 2009. He says that Zenimax didn't pay it because of "sour grapes" over the ongoing legal disputes between them and Oculus.

The full lawsuit can be read here.