Gambling as a whole is rigged, it doesn't matter what you play in the casino be it crash, slots or whatever it may be it is programmed to take your money, you can only get lucky but if you don't run away with your wins you are bound to lose it all...
Casinos offer house games, and those let you verify your bets and change the user seed. That kind of gambling isn't rigged because the casino can't predict or manipulate the outcome, but the house games have a house edge, which means a small percentage is in the side of the house for example. let's say you are playing with a friend coin flips of $100 for each bet, if your friend wins he gets $100 but if you win you get $99... that way in the long run of 1000 bets your friend will be with more profit even if both of you have the same chance to win, that's how casinos work on a provably fair way.