I've grown really tired of Call of Duty. It was fun for a while but now I just don't like it anymore.

I have a couple of games I never tire of playing. Mainly FF VII, X-2 HD and XII IZJS. I always find myself coming back to them every two to three years or so. Although the best game in this regard for me is Ougon Musou Kyoku CROSS which I've been playing on a daily basis since almost a year now, and have no intention of quitting anytime soon.