Two numbers, read correctly
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Slot RTP and volatility are the two numbers that tell you most about a game before you spin it. RTP, or return to player, describes how much of all the money wagered on a slot is paid back over the very long run. Volatility describes how those payouts are spread out: many small wins, or a few large ones separated by long gaps. Neither number predicts your next session, but together they tell you what a game costs and how it will feel.
This guide explains both in plain terms, with examples in C$ and real figures from the 50 games on this site. It also covers maximum wins, why the RTP at your casino may not match the published figure, and the myths that cost players money. Slots are entertainment with a built-in house edge; nothing below is a way to beat them.
RTP and volatility of the slots on this site
Sorted by the RTP each provider publishes. Volatility is shown in the provider's own wording - studios use different scales, so "4 / 5" and "High" are not directly comparable.
38 of 43 slots have a published RTP; 5 do not, and are left out rather than filled in from another site.
What RTP means, and what it does not
RTP is a long-run average expressed as a percentage. A slot with a 96.50% RTP is designed to pay back C$96.50 for every C$100 wagered, measured across millions of spins by all players. The remaining 3.50% is the house edge: the share the casino keeps over time.
Three things follow from that definition:
- RTP is not a session forecast. In one evening you may win several times your deposit or lose all of it. The average only appears over a volume of play far bigger than any one person's.
- RTP applies to money wagered, not money deposited. If you deposit C$100 and keep spinning your winnings, you may wager C$500 or more from that deposit, and the house edge applies to all of it.
- RTP is set by the game's design. It is not adjusted from spin to spin, and a slot does not "owe" anyone a win after a losing run.
What different RTPs cost in C$
A point or two of RTP sounds small, so it helps to see it in dollars. The table shows the long-run expected cost of C$500 wagered, for example 500 spins at C$1, using published RTPs from games on this site.
| Game | Published RTP | House edge | Expected cost of C$500 wagered |
|---|---|---|---|
| Plinko | 99% | 1% | C$5.00 |
| Aviator | 97% | 3% | C$15.00 |
| Big Bass Bonanza | 96.71% | 3.29% | C$16.45 |
| Gates of Olympus | 96.50% | 3.50% | C$17.50 |
| Wolf Gold | 96.01% | 3.99% | C$19.95 |
| Spaceman | 95% | 5% | C$25.00 |
| Pirots 2 | 94.0% | 6% | C$30.00 |
These are averages, not outcomes. What the table does show is that a slot at 94% costs, over time, nearly twice as much to play as one at 96.71%. If two games appeal to you equally, the higher RTP is the better deal.
Why the RTP at your casino may be lower
The figure on a provider's website is the standard version of the game. In practice, a slot can reach you with a different number for several reasons:
- Several RTP builds. Many providers supply casinos with a choice of RTP settings for the same game. The game looks and plays the same, but the lower setting pays back less over time.
- Feature-specific rates. Some games publish separate figures for bonus buys or side bets. Chaos Crew is 96.30% in normal play but 95.92% when you buy the free spins. Gates of Olympus Super Scatter lists 96.55% with its Ante Bet and 96.49% for Buy Super Free Spins.
- Configurable ranges. JetX is published as 96.2% to 98.9% depending on how the casino sets it up, and Plinko shows 98.91% to 99.16% depending on the risk settings you pick.
- Different sources. Occasionally a provider's page and the in-game rules disagree. For Gates of Olympus 2500 the provider page says 96.51% and the in-game rules say 96.52%; we use the in-game figure.
The fix is simple: at your casino, open the game's information or rules screen and find the RTP line. That number, not the one on any review site, is what applies to your money.
What volatility means
Volatility, also called variance, describes the shape of a game's payouts rather than their total. Two slots can have almost the same RTP and feel completely different:
- Sweet Bonanza: 96.48% RTP, rated Low volatility.
- Sugar Rush 1000: 96.53% RTP, rated High volatility.
Both return roughly the same share of money wagered over the long run. The low-volatility game spreads that return across many modest wins, so a balance tends to drift rather than drop. The high-volatility game saves more of its return for rare, large outcomes, so most sessions see long stretches of small or no wins, and a few see something big. Neither is better; they suit different budgets and temperaments.
Volatility also explains why a short demo session can mislead. Fifty spins on a high-volatility slot tell you very little about its RTP; they mostly tell you how a quiet stretch feels.
It also explains why two people can describe the same slot in opposite ways. One player who caught the free spins early with a big multiplier calls the game generous; another who spent C$100 without a feature calls it tight. Both are describing the same maths from different points in its distribution. On a high-volatility game, both experiences are normal, which is why one person's results, or one streamer's, say almost nothing about what your session will look like.
How providers label slot volatility
There is no industry-wide scale, so each studio's label has to be read on its own terms. These are the scales used by games on this site:
| Provider | Scale | Example |
|---|---|---|
| Pragmatic Play, Reel Kingdom | Low / Medium / High, in the in-game rules | Gates of Olympus 1000: High |
| Hacksaw Gaming | 1 to 5 | Le Bandit: 3 / 5 |
| ELK Studios | 1 to 10 | Pirots 2: 8 of 10 |
| Nolimit City | 1 to 10, with named levels | Mental: Extreme (10) |
| BGaming | Words | Snoop Dogg Dollars: Very high |
| Relax Gaming, Yggdrasil | Words | Money Train 3: High |
Some older games carry no published label we could confirm, and their pages show a dash. Be wary of sites that give every game a rating on one shared scale: unless they explain how they converted it, the number is their opinion, not the provider's.
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Max win: the ceiling, not the target
The maximum win is the most a single spin or bonus round can pay, usually written as a multiple of your stake. At C$1 per spin, the arithmetic is direct:
| Game | Max win | At C$1 per spin | Volatility |
|---|---|---|---|
| Big Bass Bonanza | 2,100x | C$2,100 | Low |
| Gates of Olympus | 5,000x | C$5,000 | Medium |
| Sweet Bonanza 1000 | 25,000x | C$25,000 | Medium |
| Mental | 66,666x | C$66,666 | Extreme (10) |
| Money Train 4 | 150,000x | C$150,000 | High |
The pattern is clear: higher ceilings tend to come with higher volatility, because the game has to fund those rare top outcomes from the rest of its payouts. A big max win is a reason to expect long quiet stretches, not a reason to expect a big win.
Watch for cash caps too. Some games limit what one bet can pay in money regardless of the multiplier: the Aviator and Mines demos cap a win at CA$10,000 per bet, and Valley of the Gods states its top prize as a fixed euro amount rather than a multiple of the stake.
RTP and volatility in crash and instant games
Crash and instant games publish an RTP just as slots do, and it works the same way: a long-run share of money wagered. Aviator is published at 97%, Big Bass Crash at 95.50% and Chicken Road at 98%.
Volatility is different, though, because in these games you choose much of it yourself:
- Crash games: a low cash-out target, say 1.5x, wins often and pays little; a high target, say 20x, wins rarely and pays a lot. Same game, very different swings.
- Plinko: the Low, Normal and High risk levels and the 8 to 16 lines of pegs change the values of the prize pockets.
- Mines: more mines on the 5x5 grid mean bigger multipliers per safe pick and a higher chance of losing the round.
- Chicken Road: the four difficulty levels trade more frequent small wins for rarer, bigger ones.
What you cannot choose is the house edge. Whatever settings you pick, the game is built to keep its share over time, and the speed of these rounds means that share adds up quickly. Our crash games hub compares all seven.
Matching volatility to your bankroll
Once you know a game's volatility, you can size your stake so the session lasts long enough to be enjoyable. These are rules of thumb, not guarantees:
- Low volatility: smaller swings, so a stake of 1% to 2% of your session budget usually gives a long session.
- Medium volatility: around 1% of the budget leaves room for a quiet stretch before the feature arrives.
- High or extreme volatility: consider 0.5% or less; these games can go a long time without a meaningful win.
- Bonus buys: count the full price against the budget. A 100x buy at C$1 is C$100, the same as 100 base spins.
Whatever the volatility, the RTP is unchanged by your stake. Betting more does not improve the return; it only makes each swing bigger. For real-money advice on choosing a casino, see our real money slots guide.
Slot myths that cost players money
- "This slot is due to pay." Every spin is independent. A long losing run does not make the next spin more likely to win.
- "The game is hot right now." A recent big win does not change the odds of the next one either.
- "A bigger stake raises the RTP." The percentage is the same at C$0.20 and at C$100.
- "Bonus buys always pay back more." Some buy options carry a slightly lower RTP than normal play, as Chaos Crew shows.
- "A strategy can beat the house edge." No pattern of stakes, timing or features changes the maths. Budget and time limits are the only strategy that protects you.
If you notice yourself chasing losses or believing a win is owed, take a break; our responsible gambling page lists free help in every province.
19+ (18+ in AB, MB and QC). T&Cs apply. Not available to Ontario residents. Play responsibly.
Written by Owen Brassard, Slot analyst
Fact-checked by Nadia Roy, Fact-checker - every figure on this page is compared with the provider's own published material.
Updated · Our review process