Most high rollers or whales prefer to gamble online sites that use digital currencies. One force behind that is the high anonymity and security level. It is safe to gamble in casinos that use blockchain systems. They pick details on games and transactions but not about the identities of the gamblers. That is a great advantage for high rollers since they don’t want financial companies and state authorities to reach their information.
Operating without a local license is illegal in European countries such as the UK, France, Austria, Germany, Finland, Spain, Netherlands, Italy, Denmark, and others; and this law applies to local as well as foreign operators.
To answer the above question, yes, slot machines are honest—in a manner of speaking, anyway. Casinos don’t make claims about slot machines in an open manner. If a game has a maximum jackpot of $1 million, you do have a chance of winning that much money. But all casino games have calculation behind the slot machines that put the odds in the casino’s favor.