Some crypto betting games are provably fair, while others aren't. When deciding the crypto games to play you should consider it's fairness. (Especially a game that requires luck.) Not all that claim to be provably fair are actually as they say, some are just managed by scammers.

A provably fair crypto betting game would have it's code on Github i.e. open-sourced. That way a developer can easily confirm the authenticity of the claims. Another way would be to use a provably fair tool to check. These tools can be found online.

A friend lost a chunk of his crypto investments to a scammer that claimed his game was provably fair. The owner of the website waited till the website was popular, to accrue more victims. Then he simply closed the website and vanished with thousands of dollars belong to people.

Don't play because others are winning!

That's another tactic the scammer used. He usually gave winnings to a circle of accounts that were managed by him. When you try to compare the losses of the accounts to wins, the wins would be more. He did this to entice his victims.

Be safe!