Actually really enjoying this payout game. Working well for me so far.

http://minefield.bitcoinlab.org/?r=Vp78kYAowIVfTz7y

Set your bet and how many mines are in the field to adjust the payout amount. I'm working in 0.001 increments right now and I'm up .005 so far! You can test out how it works by selecting 0 first, then you can decide if you want to put some btc in the balance or not.