RNG
The random number generator decides each outcome independently. Reputable games use tested RNGs so results cannot be predicted or nudged by timing your spins.
Pokies
Pokies are the most popular games in any online casino, but the maths behind them is often misunderstood. This evergreen guide explains RTP, paylines, volatility and bonus features in plain English so Australian players know what to expect before they spin.
01 — The basics
An online pokie is a digital slot game made up of reels, symbols and a set of rules that decide when and how you win. Every spin is produced by a random number generator (RNG), a tested piece of software that picks an outcome the instant you press spin, independent of every spin before it. There is no memory between spins, no game that is "due" to pay, and no way to influence the result once the reels are set in motion. Understanding this is the foundation of playing pokies sensibly: they are games of chance built for entertainment, and the right approach is to treat any wins as a bonus rather than an expectation.
02 — RTP & RNG
Two ideas explain how pokies pay over time. Get these and most myths about "hot" or "cold" machines fall away.
The random number generator decides each outcome independently. Reputable games use tested RNGs so results cannot be predicted or nudged by timing your spins.
Return to player is a long-run average — the share of all wagers a game is designed to pay back over millions of spins. It describes the game, not your next session.
The flip side of RTP is the house edge, the small built-in margin that lets the casino operate. It is why, over time, the odds favour the house.
In a single session you might win big or nothing at all. RTP only smooths out across huge numbers of spins, never within one sitting.
03 — How wins land
Pokies pay in a few standard ways. Knowing the structure of a game before you play helps you read its pay table and set sensible bets.
Fixed lines across the reels where matching symbols pay. Some games have a few lines, others have dozens — more lines usually means a higher total stake per spin.
Instead of set lines, "ways" games pay when matching symbols land on adjacent reels in any position, often giving hundreds of winning combinations.
Wilds substitute for other symbols to complete wins, while scatters often trigger features and can pay regardless of where they land on the reels.
Every pokie has a pay table showing symbol values, active lines and feature rules. Reading it first is the quickest way to understand a new game.
04 — Volatility
Volatility (sometimes called variance) describes how a pokie distributes its wins, and it shapes the playing experience far more than RTP alone.
Wins land more often but tend to be smaller. The balance moves up and down gently, which suits longer, lower-key sessions on a modest budget.
A middle ground with a mix of smaller frequent wins and occasional larger ones. Many popular pokies sit here for broad appeal.
Wins are rarer but can be much larger when they arrive. Expect longer dry spells, so a larger buffer and steady nerves help if you play these.
There is no "best" volatility — only what fits your bankroll and the experience you want. Pick a game that matches how long you want to play.
05 — Before you spin
A minute of preparation makes any pokie session more enjoyable and easier to keep in check.
Decide an amount you are comfortable spending for entertainment before you start, and stick to it.
Check the symbol values, number of lines and how the features trigger so nothing surprises you.
On multi-line games the total stake is your bet per line times the lines — confirm the full spin cost.
Deposit, loss and session limits in your account help keep play within your plan.
Outcomes are random, so play for fun and never chase losses or expect a win to be "due".
06 — FAQ
Short answers to what Australian players ask most about online pokies.
Yes. Reputable pokies use a tested random number generator, so each spin is independent and cannot be predicted or influenced once you press spin. There is no pattern to time.
No. RTP is a long-run average measured over millions of spins across all players. It describes the game over time, not your individual session, where results can swing either way.
No. Because every spin is independent, a game is never due to pay and a recent win or loss has no effect on the next spin. This is the gambler's fallacy.
RTP is the long-run return rate, while volatility describes how wins are spread out — low volatility pays small and often, high volatility pays rarely but larger.
Set a budget before you start, use deposit and session limits, treat play as entertainment rather than income, and take a break if it stops being fun. See our Responsible Gambling page for tools and support.
Our team is online 24/7 to explain how a game works, point you to its pay table, or help you set account limits before you play. Pokies are entertainment, so play within a budget you are comfortable with.
Open Live ChatTip: RTP is a long-run average — it never guarantees the result of your next session.