Higher RTP percentage machines generally offer better long-term odds of winning, so it's advisable to choose them. Variance or the volatility of the slot machine should also be taken free casino slots gamesinto account when selecting it. The danger of playing a certain slot machine is referred to as volatility. More often than not, machines with low volatility pay out smaller wins, and less frequently than not, machines with high volatility pay out larger wins. You can select a machine that fits your playing style & risk tolerance by being aware of its volatility.