The game's volatility and return-to-player (RTP) percentage are two of the many variables that affect the odds. The percentage of money wagered thamr green slotst a slot machine should eventually return to players is known as the RTP. A game with a 95 percent RTP, for example, theoretically returns $95 in winnings to players over a long period of time for every $100 wagered. The degree of risk connected to a specific slot game is known as volatility.