RollerCoin is fun little game you can play when you're waiting for something and you don't have anything to do. You can earn few satoshi (0.00000001 BTC), I know it's not much money, but think about it. You get free money just for playing games when you're bored.
You can earn Bitcoin (BTC), Ethereum (ETH) and Dogecoin (DOGE).
When you play games, you earn power. The more power you have, the more satoshi you earn.
If you earn enough satoshi you can buy miners. Miners gave you some power even without playing games, which means they earn money even when you don't play games.
Currently, there are 9 minigames to choose from:
Coinclick – A user must click on coins that the hamster is throwing.
Token Blaster – A space invaders style game.
Flappy Rocket – Similar to the flappy bird, only with hamster.
Cryptonoid – The user must break the bricks with ball.
Coin-match – Bejewelled.
Crypto Hamster – The user must jump a hamster up a screen, landing on pads, and avoiding aliens.
2048 Coins – Title the table each direction to match coins.
Coin-Flip – The user must match pairs of coins.
Dr.Hamster – Tetris.
If you want to try this nice little simulator game, here's the link:
https://rollercoin.com/?r=keaevcjv