An anonymous reader quotes a report from TechCrunch: The feud between Oculus and ZeniMax Media is opening up once again, this time with the CTO of Oculus, John Carmack, suing his former employer for earnings that he claims are still owed to him. The suit is largely unrelated to the $6 billion trade secrets suit which ended last month with a $500 million judgment against Oculus. Instead, Carmack is suing ZeniMax Media for $22.5 million that he says has not been paid to him for the 2009 sale of his game studio, id Software, known for such pioneering video game classics as Doom and Quake. The lawsuit reveals that ZeniMax Media paid $150 million for the game studio. The document details that Carmack was set to earn $45 million from the id acquisition. In 2011, Carmack converted half of that note into a half-million shares of ZeniMax common stock, but has yet to receive the other half of his earnings in cash or common stock from the company, despite formal requests being made. The lawsuit was reported first by Dallas News.