Köhler, Stefan (October 26, 2014). "Tod durch Untote" [Death by Undead]. GameStar (in German). p. 2. Archived from the original on June 30, 2015. Retrieved July 25, 2015.
Köhler, Stefan (October 26, 2014). "Tod durch Untote" [Death by Undead]. GameStar (in German). p. 2. Archived from the original on June 30, 2015. Retrieved July 25, 2015.