Real money slots for Canadians: volatility, RTP and features

How real money slots pick each result

Behind every slot sits a random number generator (RNG), a piece of software that churns out random numbers non-stop. The moment you hit spin, the game grabs the current number and translates it into a stop position for each reel. The reels you watch turning are only an animation of an outcome that was settled when you pressed the button.

That has two consequences. Every spin stands alone: the previous spin, or the previous hundred, cannot influence the next. No game is ever "due", and one that has just paid out has not gone "cold". And nothing you do while the reels turn, such as tapping to stop them early, alters what you get.

The game's maths sets the probability of each outcome and the size of each prize. Built into that maths is a margin that favours the casino, and over time that margin generates the operator's profit. You may see it described as the casino's edge.

Low, medium and high volatility

Volatility, also known as variance, is about the pattern of a slot's payouts rather than how much it returns overall.

Low-volatility slots land small wins frequently. A balance drifts gradually, and the same budget tends to stretch across a longer session.

Medium-volatility slots blend steady small wins with the odd larger one.

High-volatility slots pay out less often and can go through long losing streaks, yet the wins they do produce can be much bigger. Sessions can be over fast.

Volatility affects the feel of a game and how quickly a budget can drain, but it leaves the built-in margin untouched. Some developers state a game's volatility in its information panel. If yours says nothing, playing the demo version is the simplest way to judge it.

Return to player, and what it cannot tell you

Return to player (RTP) is the portion of all money wagered on a game that the game is built to pay back, averaged across a huge volume of spins. The developer publishes the figure, it differs between games, and the same title can sometimes come in more than one version with different settings.

Because RTP is an average over the very long run, it gives no dependable guide to any one session; over a short stretch, results can go either way. Whatever falls short of a full return is the built-in margin. A game's information panel will normally show the developer's published figure.

Bonus rounds, jackpots and other features

Wild symbols stand in for other symbols to complete a winning line. Scatter symbols pay out wherever they appear and frequently unlock a bonus round. In-game free spins are a feature built into the game's maths, which is not the same thing as promotional free spins handed out by a casino; our guide to free spins offers covers those. Multipliers scale a win up by a set factor.

Jackpots come in two broad types. A fixed jackpot has a set top prize. A progressive jackpot grows as players wager on a linked game. Progressive prizes are very hard to land, and a big figure on the screen does nothing to improve the chances of any single spin.

Slot myths that do not hold up

"It is about to pay out." Every spin stands alone, so a long dry spell does not bring a win any closer.

"Slots pay more late at night." The clock plays no part. The random number generator has no idea what hour it is.

"The casino tightens a game after a big win." The maths is locked in when the game is built and certified. The operator cannot dial it up or down during your session.

"Staking more improves the odds." On most slots each outcome is equally likely whatever the bet size. A larger stake scales wins and losses up; it does not make them more frequent.

Picking a game that suits you

Since the maths is fixed, no single slot gives you a better chance than the rest. What you can pick is a game that matches the way you like to play. For longer, steadier sessions, lean towards lower volatility. If you would rather chase a bigger win and can accept a session ending quickly, higher volatility suits. Check the information panel for the features and the published return figure, and play the demo where one exists. Themes and artwork come down to personal taste and have no effect on the odds.

Setting a slots budget

Slots move quickly. Each spin lasts a few seconds, so a balance can shrink before you notice. Fix a budget before you begin and walk away once it is spent. Give yourself a session time limit, and switch on reality checks or time-outs if the site has them.

Do not try to win back what you have lost. Because each spin is independent, carrying on to recover losses only raises how much you could lose. See any win as good fortune rather than a signal. If slots are no longer enjoyable, step away, and visit our gambling help page for limit tools and free support.

Keep reading: the full BetNook guide library.