How I Made £3.52 ($4.76) Worth of Bitcoin Playing Games? I have made my first withdrawal on Rollercoin - https://rollercoin.com/?r=kp5tc0pq RollerCoin is an online, virtual bitcoin mining game where you compete against your friends to mine bitcoins. It takes the concept of bitcoin mining, but instead of the sophisticated Blockchain and processing algorithms, RollerCoin lets you test your skills, complete missions, undertake tasks, and play games to build your mining empire.