The dApp lives on Polygon (formerly Matic) and only support ETH games for now but we will soon be able to support other tokens such as MATIC. You can visit our documentation under the FAQ for more about bridging to Polygon.
In order to play you need to deposit minimum 0.01 ETH which will become your “in-game balance”. Bear in mind there is a 1.5% fee but after that you are free to create and play all the games you want without any fees. Each game has a minimum wager amount of 0.001 ETH.