Two other terms are important: volatility and Return to Player (RTP). RTP is a theoretical percentage. It represents the average amount of wagered money a slot pays back over an enormous number of spins. It is not a guarantee for your playing session. High-volatility slots can have long spells with no wins, succeeded by potentially big payouts. This design can warp a player’s view. Grasping these terms encourages a more accurate view of the game’s design.