Crypto casinos let you use digital currency, meaning you control your wallet...

https://paxtonsexpertop-ed.zenbloomer.com/posts/why-can-my-bitcoin-balance-change-even-if-i-do-not-play-any-games

Crypto casinos let you use digital currency, meaning you control your wallet and private keys. Traditional online casinos use regular money, like pounds, where £20 stays £20 without price swings