Kern left Blizzard in 2006 to co-found the development company Red 5 Studios. There he worked on the title Firefall before eventually leaving the company after being voted out as CEO by the Red 5's Board of Directors.
In 2012, Kern started the League For Gamers in response to the Stop Online Piracy Act (SOPA) and the PROTECT IP Act. Kern said that the League For Gamers would stand as an advocacy group for the gaming community. He intended it to rival the Entertainment Software Association which focused more on publisher rights, in light of its support of SOPA. Red 5 Studios' website went offline on the 18th of January to draw attention to the legislation.