'' ZombiU '' offline multiplayer mode was developed by Ubisoft Bucharest . Conceived during early development , it was kept when the core game was reiterated ; its asymmetrical experience made the developer believe in the Wii U 's potential , and was the demo Ubisoft showed the public during E3 2011 . A cooperative multiplayer mode and online play were planned by the developer , but were removed due to time constraints
E3 2011
E3 2011
ZombiU