What RTP Does and Does Not Tell You
RTP tells you how much of all money wagered a game is designed to pay back over a very large number of spins. It is a property of the game's design, measured across every player and every spin over its lifetime.
RTP does not tell you:
- How much you will win or lose in a session
- How often you will win
- How large your wins will be
- When a win or feature will happen
GambleAware NSW makes the same point about venue pokies: gaming machines are required to return 85% to 92% of all money bet over their lifetime, but that does not mean you get back 85 to 92 cents for every dollar you bet.
Why Short Sessions Swing So Much
Every spin is random and independent, decided by the random number generator. Over a small number of spins, luck dominates. A single big win can push a session far above the RTP, while a dry spell can leave it far below.
As the number of spins grows, the effect of any single win or loss becomes smaller relative to the total, and the overall return tends to move closer to the RTP. In statistics, this is known as the law of large numbers.
An Example: Two Games With the Same RTP
To show how this works, take the two simple example games from our Slot Volatility Explained guide. Both have an RTP of exactly 96% and a $1 bet per spin.
- Game A (low volatility): 48% of spins pay $2, and the rest pay nothing.
- Game B (high volatility): 1% of spins pay $96, and the rest pay nothing.
The figures below are calculated exactly from the probabilities of each game. The "typical range" shows where the middle 90% of sessions finish.
Game A: Low Volatility
| Spins in session | Typical range of session return | Chance of finishing ahead |
|---|---|---|
| 100 | 80% to 112% | about 31% |
| 1,000 | 91% to 101% | about 10% |
| 10,000 | 94% to 98% | less than 0.1% |
| 1,000,000 | about 96% | effectively zero |
Game B: High Volatility
| Spins in session | Typical range of session return | Chance of finishing ahead |
|---|---|---|
| 100 | 0% to 288% | about 26% |
| 1,000 | 48% to 144% | about 42% |
| 10,000 | 81% to 112% | about 32% |
| 100,000 | 91% to 101% | about 9% |
| 1,000,000 | 94% to 98% | effectively zero |
What the Example Shows
- In short sessions, results vary widely. After 100 spins on Game B, around 37% of sessions have produced no win at all, while others have returned more than double the money wagered.
- Volatility decides how long it takes to settle. Game A's sessions are close to 96% after about 10,000 spins. Game B needs around a million spins to get as close.
- Over enough spins, the house edge wins. In both games, the chance of finishing ahead falls towards zero as the number of spins grows. Game B's chance looks lower at 100 spins than at 1,000 only because, in a 100-spin session, a single $96 win is not quite enough to cover $100 of bets.
Real pokies are far more complex than these examples. They have many different prizes, bonus features and rare top wins, often worth thousands of times the stake. That usually makes their short-term results swing even more than Game B, and means they need even more spins for results to settle near the RTP.
The Number That Matters: Total Amount Wagered
The amount you lose over time is linked to the total amount you wager, not just the amount you start with. Every spin counts, including spins played with money you have just won.
Expected cost ≈ total amount wagered × house edge
Example: You start with $100 and play $1 spins on a 96% RTP game. If you keep re-betting your wins and play 1,000 spins, you have wagered $1,000 in total. The expected cost is about 4% of $1,000, or $40, even though you only brought $100.
This is why the speed and length of play matter so much. More spins mean more money wagered, and more money wagered means a larger expected loss.
Why Results Can Feel Different From the Maths
Several things can make pokies results feel more random or more unfair than they are:
- Memorable wins: big wins stand out, while steady small losses fade from memory.
- Wins that are really losses: many "wins" pay less than the stake. GambleAware NSW calls these losses disguised as wins.
- Near misses: landing two jackpot symbols feels close, but it is simply a losing result. See Pokies Myths Explained.
- Different RTP versions: many online games come in several RTP versions, so the game you play may have a lower RTP than the figure you read about. Check the game's paytable.
- Jackpot contributions: in progressive jackpot games, part of the RTP is reserved for a rare top prize, so the return most players experience is lower.
Can You Use RTP to Your Advantage?
Choosing a game with a higher RTP lowers the expected cost of playing over time. It does not make a winning session more likely in any meaningful short-term sense, and it does not make pokies a way to make money. No game, strategy or betting pattern can overcome the house edge over the long run.
A more practical approach is to decide what you are willing to spend on entertainment and treat that money as the cost of playing. Our guide on setting gambling limits explains how.
Playing Responsibly
Short-term swings can lead to two dangerous beliefs: that a losing machine is "due", or that a lucky session can be repeated. Neither is true. If you notice yourself chasing losses, it is time to stop. Our guide to recognising gambling harm explains the warning signs, and Gambling Help Online offers free, confidential support 24/7 on 1800 858 858.