Most people play online roulette for fun, for example with some lucky numbers or for very low stakes each time.
Because Roulette is a memoryless game of chance, no matter what roulette strategy you employ the mathematical probability of winning cannot be changed. Winnings from roulette systems and strategies are always going to be governed by the house edge and due to the random nature of the game, employing a roulette strategy will give the same odds of winning as not employing that strategy.
For serious players, there are a number of strategies you can use to maximise your winnings or minimise your losses. The best-known strategy is called Martingale and involves betting on red or black every time and if you don’t win, you double your next bet.
There are also about 10 other roulette strategies you can stick to to get the most out of your game.