Rollercoin is a online bitcoin mining simulator game, where you mine blocks that are worth real cryptocurrency. This makes it easy to earn your own bitcoin without any expertise or expesive mining hardware, just by playing this game. They have a lot of fun, classic minigames you can play on the side to earn extra mining power. Every bitcoin block in this game is worth 9000 Satoshis and will be split among all miners depending on their virtual mining power, just like on a real mining pool. Over 7 real BTC were mined on Rollercoin so far. Click here to sign up.