Go back to Volatility and the Player. Players should think about the return to player (RTP) percentage of online slots in addition to the variety of games available. A slot game's average pfree games slots casinoayout percentage (RTP) shows how much money players will typically receive back over time; higher percentages correspond to better winning chances. Also, since it establishes the degree of risk involved, knowing how volatile slot games are is essential. While high volatility slots offer larger payouts less frequently, low volatility slots offer smaller wins more frequently.