We currently (as of November 19) have 65 questions tagged "Clash of Clans" on the site, with an average question score of 0.2. Currently, these questions have generated a grand total of two answers that have received multiple up votes. This isn't a recipe for quality Q&A, which is what the site is designed to encourage.
Accordingly, I'd like to make questions about the particulars of specific games to be off-topic for this site. Maybe there are fora that can generate constructive discussion about "how do I change users in Sonic and Zelda Assassin: Grand Theft Unicorn Edition," but it doesn't seem to be working here.
The only two CoC answers with multiple up votes are pretty trivial answers themselves: one quotes the documentation for the game and the other indicates that there is no OS X version of the game. Good information, but if these are the best responses CoC questions generate, maybe that's a sign that the site is better off without CoC questions.