Tokyo Ghoul Mobile Game Slated for 2016
"Since we started airing anime in last year and Tokyo Ghoul anime fans demanding a game," and added, "the second season ended and the third season will begin in 2016, and we expect that the game will grow more."
So far there is no official statement from the official studio or Japanese publishing companies, and it may be just a fault from the CEO, nothing is sure yet until the news will be confirmed officially.
Source: ANN