The best and easiest strategy for roulette is selecting the French roulette rather than the American roulette. If the table has a 0 and a 00 (double zero) it’s an American roulette, and you are better off staying away from this table. If the roulette only has one 0, which is the green number displayed closest to the roulette wheel, it is a French roulette and this is the table you should choose. When several zeros are used, this gives the house / casino an advantage over the players, and thus the casino will be the winner in the long run. The Double Zero, which you will find in the American roulette, gives the house / casino additional advantages, and this means that you should simply stay away from them if you have other alternatives.
Strategies for Slot machines
Unfortunately there are no strategies that work when playing slot machines. These machines are completely turn-based, because their outcome is based on a random number generator. However, people still talk about hot and cold slot machines, and uses this as an indicator for which slot machine to choose. The theory is that a slot machine that hasn’t paid out any winnings for a while is a hot machine, meaning that there is a higher chance of winning when playing on it. Random number generators found in gaming machines (slot machines) take no account of past outcomes. This means that the chance of winning is just as high on a spin whether or not if the previous spin was a winning spin or not. So the only casino strategy available for gaming machines is to choose an online casino with great bonuses and great slot machines with high payouts. For a complete list of these online casinos, see the bottom of this page.