Cookie Clicker is one of those games that once you start playing it, you can't stop playing it.My current save file is 3.8 years old but I have been playing it for around six or seven years at this point.My goal is to get all of the acheivements, which is going to take a long time because a lot of the stuff is like "Have a shitload of a certain building" or "Make some amount of cookies per second".I'm currently at 81% completion and I hope it does take too much longer to complete (I heard that one of the achievements is not playing the game for 2.5 years staight soooo....)
