Short answer: RTP (return to player) is the percentage of all money wagered on a game that it's designed to pay back over a very large number of plays. It matters, but over the long run, not for any one session.
The basics:
The basics:
- A slot with 96% RTP is built to return about $96 for every $100 wagered, averaged over millions of spins. The other 4% is the house edge.
- In a single session you can win big or lose your whole budget on a 96% game. RTP doesn't predict short-term results.
- Volatility is a separate thing. High-volatility slots pay out less often but in bigger hits. Low-volatility slots pay smaller amounts more often.
- Over many sessions, a higher RTP means your money tends to last longer.
- The same slot can come in more than one RTP version, and the casino picks which one to offer. Two sites can run the same game at different RTPs.
- Many legal US casinos show the RTP in the game's info or help screen. Check there before you play.
- It doesn't "owe" you a win after a cold stretch.
- It doesn't change based on what time you play or how long you've been spinning.