Online roulette isn’t rigged. I play online twice a week and have done for over 7 years. The games house edge creates the casinos advantage, but mostly as with all gambling games the players losses are incurred by greed driven undisciplined players who don’t know when to stop.

Random numbers are generated by a mathematical algorithm that is seeded with another random number to begin it’s generation of numbers, even the few leading mathematicians that design the algorithms do not know what random numbers it produces except that they are as near random as is possible compared to results from real randomness that you simply cannot tell any difference.

If you are suspicious of playing software roulette online you can always play live roulette online via live video streaming which most online casinos offer, it’s fairly slow as in a brick and mortar casino and you see everything.

You can trust them completely … except when money is involved

There’s no way to know for sure, but in general the reliable sites are self-governing and take steps to make sure that there is no unscrupulous activity. The house will always have an edge, and the notion that an online casino is rigged is often amplified due to the fact that you are playing online at a much faster hand per hour. In real life, a spin of the wheel, payouts, clearing of the boards, etc can take several minutes until the next. Online it’s instantaneous. So, where it might’ve taken 15 minutes to lose $50 in a real life casino, it might take less than 5 to lose it online. That’s just a little bit of perspective.

There’s a list of online casinos if you wish to try for yourself at Hope this helps.

Random, but like in real roullette there is always the house advantage of the zeros.