There are actually many ways to purchase bitcoins to play at a crypto casino. The currency is decentralized and not regulated like the dollar or euro. Therefore, many platforms buy and sell bitcoins. The competition on that market is pretty tough, and the platforms always have to offer something new to attract new customers. One of the ways to do so is to provide various payment methods. In fact, you can exchange any online currency to bitcoin; it is only necessary to find a corresponding website.