In addition, the return-to-player (RTP) percentage should be taken into account when selecting a slot machine. Theoretically, a machine will return this much money to players over time.buffalo free slots Seek out slots with a high return on investment (RTP) as these are more likely to offer regular little wins. It is important to remember that RTP is a long-term average and does not ensure that you will receive a certain proportion of your bets back during any particular session. When choosing, it's important to take a slot machine's volatility into account as well.