I would recommend playing them when you feel like it, or play for a certain amount of time each day (depending on how long you have). I play multiple games too, and find this to be a good way to play all of them. I tend to play the less exciting (to me) game first, until i'm bored, then go onto the next game. If I have less time though, I just skip the first part, or play nothing. Hope that helps you out