Enough about EA, Let's see what Ubisoft has to say

[curl-6]

Ubisoft currently have the highest selling third party game on Wii U in ZombiU, and 3 of the system's 10 top sellers to date.

They're doing quite well on Wii U with regards to its small install base; 1 in 8 Wii U owners owns ZombiU. (that'd be 9-10 million on PS3/360)