Polygon reports that it has obtained a copy of the court filing showing that ZeniMax Media, familiar to MMO players as the parent company of The Elder Scrolls Online's ZeniMax Online Studios, has sued Oculus VR for misappropriation and commercial exploitation of "copyrighted code, trade secrets, and 'technical know-how'" in relation to Oculus' virtual reality tech.

ZeniMax Media earlier this month accused Oculus (by way of developer John Carmack) of using and exploiting "ZeniMax's technology and intellectual property without authorization, compensation or credit to ZeniMax." Oculus and Carmack strongly denied those claims.

This article was originally published on Massively.