We believe that there is no online casino with a low or high return rate, it all depends on luck. You can win all month, and then you can lose for a very long time, in poker slang such a series of losses is called "downstreak". Choose a game on a gambling portal based on your inner feelings, and remember that playing in a casino is first of all getting pleasure, and then money. However, all of the best rated online casinos on our list have a high RTP percentage. You can verify this by reading the reviews of real players, and some websites single out the games with the highest RTP in a separate category.