Nice concept but can't we withdraw any amount as reward, or it is just a timepass game.
I think that it's best left as a game to have fun and pass some time with. Doing a virtual funds to real funds would be hard to do, since there are two scenarios that I can think off the top of my head:
1) You do a direct ratio of funds -> real bitcoins. Unfortunately, this would mean that people with more expensive equipment would be earning more and more (exponentially) and would hog the payouts.
2) You could do something that pays out for the amount of time you invest in the site; however, this could be easily manipulated with bots.
now need a reality, which is where we spend time not only to play it .. but the result of that we play
Popular games don't give any incentives to play, other than the fact that it's fun to play. Similarly, just play the game and have fun with it.