In 2020 Bitcoin is still the most desirable crypto currency in the world. If you have extra funds, you can invest them in BTC — it is always a wise decision. There are many options available. Some people do it with Bitcoin faucets, others use mining mobile apps. There are also some special online games that provide slow BTC «growing». However, the fastest and the easiest way to earn this popular crypto currency is Bitcoin gambling. It is provided by many casinos, and this is a short review of this popular way of BTC earning.