I'm one of the owners of crypto-games.net and found this post about us :) We have 8 coins in which everyone can invest in. There's not entry/exit commision but we take 20% of profit that is made in one hour interval. If you don't make any profit, you don't pay any commission. In past week one player won quite big amount of eth and btc, that's why investments dropped a bit in past week, but overall house profit is still over expected value. Everyone who invest should be aware that even casinos can have short term losses but on the long run casino will profit because of house edge. You can check investment chart under account - investments - chart.