"As we've speculated before, it seems Tango Gameworks is developing this game with a highly modified version of Id Tech 5, according to Famitsu. Mikami previously said that the engine has been modified to the extent of it being an "internal engine"
via N4G: pc news feed http://n4g.com/news/1236962/the-evil-within-confirmed-to-be-using-id-tech-5
via N4G: pc news feed http://n4g.com/news/1236962/the-evil-within-confirmed-to-be-using-id-tech-5