The payout percentage, also known as the return to player (RTP) rate, is the percentage of money that is returned to players over the long term. The higher the payout percentage, the better the chances of winning. However, it's important to note that the payout percentage is calculated over a large number of spins, so in the short term, you may experience winning or losing streaks.
Generally, online slots tend to have higher payout percentages than land-based slot machines. Some popular online slots with high payout percentages include:
Mega Moolah by Microgaming with an RTP of 88.12%
Blood Suckers by NetEnt with an RTP of 98%
Mega Joker by NetEnt with an RTP of 99%
1429 Uncharted Seas by Thunderkick with an RTP of 98.6%
It's important to keep in mind that RTP rate is not the only factor to consider when choosing a slot game. Bonus features, theme, and overall player experience also play an important role.