The Return to Player (RTP) percentage refers to the likelihood of a successful spin, roll, or draw. Generally, anything above the 96% mark is considered satisfactory. However, as expected, some higher-paying slots and games may fall just below. RTP can have a positive or negative effect on your online casino experience as this determines your chances of winning. It is important to note that the RTP does not relate to the likelihood of winning the jackpot, but win % as a whole.