Rollercoin.com RollerCoin is an online Bitcoin mining simulator game. Play mini-games and earn the mining power. The mining power is the amount of Th/s you have. You can grow it by playing games, completing tasks, or purchasing stationery miners that will provide a stable increase in your mining power. The more power and effort you give - the more BTC you get. Payment will be sent to your Bitcoin wallet on demand. The minimum amount for withdrawal is 10000 Satoshi Highly recommend!