I've been playing a game for a few months now: BitcoinBandit, on Android
It's really cool, because it's free. All you have to do is play. If you're amongst the top ten, you will win bitcoins.
So why share this? Won't this mean more people to fight against in order to win? Yes. However, since the game makes its money from advertisments in the app, more people playing means more to win.
Currently, the top one wins 5 000 000 satoshis. The rest of the top ten splits another 5 000 000 satoshis. Come and join the game!
Also, support them on leetchi and help this recent game gain popularity: http://www.leetchi.com/c/bitcoinbandit
Just have an actual try, it's on the Android app store!