RollerCoin is an online crypto mining simulator game. The idea of the game is distribution of block reward between players depending on their mining power - just like with real crypto mining except You don't need powerful and expensive miner.
You can sign up here and we can continue after that.
After signing up You can see Your room, mining power and network power. You can play games to earn temporary mining power or deposite crypto to swap for RLT (in game currency) to buy miners and get permanent mining power.

Rollercoin also has many offerwall partners which allow You to earn RLT to buy miners. They also have weekly and monthly leaderboards which let you win huge amounts of RLT.

It takes time and patience to earn as free to play but once you get the snowball rolling, it gets really fast.
Complete daily quests as much as you can because they offer great rewards for account progression.
Once again, You can join me here.
Happy to answer to any questions!