Bitcoin is the very first and most famous digital currency worldwide. Its creator was Satoshi Nakamoto in 2009, and nobody can say if Satoshi Nakamoto is a natural person or a group of software developers.
As a virtual currency, bitcoin can be used to buy goods and services and is also famous as a payment method in online casinos, offering some advantages to players such as Anonymity, Transaction Speed, Lower Fees, Secure Transactions, and accessibility for people that to play casino avoiding the banking system.
On the other hand, bitcoin casino players have to consider that bitcoin price is highly volatile even in a short period (daily or even hourly). Some casinos use bitcoin deposits and withdrawals because they are not regulated or licensed by any gambling commission or authority.
Finally, Bitcoin Casinos tend to offer higher bonuses to their players.