Actually it takes 10-15 min even less to play all 3 games. And these games have notifications (every half hour). I installed them and when I have time I play. More you play, more you earn. Personally I was looking for ways to earn without any investment or risk, and this type of earning fine for me. Of course I do other stuff like captcha typing and playing Farmsatoshi. So far from captcha typing yesterday I earned 0.7$ and transferred to my webmoney account. On farmsatoshi I'm still upgrading. I know it is not much, but for beginning it's ok.