Return to player, or RTP, is the one number that tells you what a slot costs to play. A game with a 96% RTP pays back C$96 for every C$100 wagered over its lifetime, and keeps C$4. Most online slots sit between 94% and 97%. A small group goes higher, some to 98% and a few to 99%, and over a long session that gap is worth real money.
This page lists the highest RTP slots Canadians can find, explains why the same game can pay differently at two casinos, and shows how to check a slot’s RTP yourself in a few seconds. If you are comparing whole casinos rather than individual games, our ranking of best payout casinos in Canada covers casino-wide payout rates.
Quick answer: The highest RTP slots widely available are Ugga Bugga (99.07%), Book of 99 (99%), Mega Joker (up to 99% in Supermeter mode), Jackpot 6000 (98.86% in Supermeter mode), 1429 Uncharted Seas (98.6%) and Blood Suckers (98%). Always check the RTP in the game’s info screen, because many studios let casinos run lower versions of the same slot. And remember that RTP is a long-run figure: over one session, luck matters far more.
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About this list. These are our general picks for players outside Ontario and Alberta, ranked by our overall review score. Game libraries and the RTP versions casinos choose can differ, so check the game you want and its info screen before you play. If you live in Ontario or Alberta, play at a provincially licensed site instead (see the section on provincial sites further down).
The Highest RTP Online Slots
These are the developer-published figures for each game’s standard version. Several of the very top figures depend on a particular play mode, which is noted.
| Slot | Studio | Published RTP | Notes |
|---|---|---|---|
| Ugga Bugga | Playtech | 99.07% | Among the highest published figures of any online slot |
| Book of 99 | Relax Gaming | 99% | A “Book of” style game built around its RTP |
| Mega Joker | NetEnt | Up to 99.00% | Only in Supermeter mode; the base game returns less |
| Jackpot 6000 | NetEnt | 98.86% | Supermeter mode |
| 1429 Uncharted Seas | Thunderkick | 98.6% | Unusually low volatility for a modern video slot |
| Blood Suckers | NetEnt | 98.00% | Low volatility; a long-time favourite |
| Jack Hammer | NetEnt | 97.10% | Vintage comic theme, medium volatility |
| Fruit Salad | Microgaming | 96.90% | Simple three-reel classic |
| Immortal Romance | Games Global (Microgaming) | 96.86% | Popular vampire-themed video slot |
| Big Bass Bonanza | Pragmatic Play | 96.71% | Often used for free spins offers |
For comparison, Book of Dead publishes 96.21% and Starburst 96.09%, both close to the average for a modern video slot. Progressive jackpot slots sit much lower in the base game, because part of every bet feeds the jackpot. Mega Moolah’s base game returns roughly 88%, as our page on progressive jackpot slots explains.
The Same Slot, Different RTP: Check the Version
This is the part most players never hear about. Many studios offer casinos several RTP settings for the same game. The graphics, features and name are identical. Only the return changes.
Book of Dead is the best-known example. Its standard version publishes 96.21%, but reviews also report versions at 94.25% and lower. The difference in money is not small:
| Version | Average cost per C$1,000 wagered |
|---|---|
| 96.21% | About C$38 |
| 94.25% | About C$58 |
That is about 50% more expensive for exactly the same game. You cannot tell the versions apart by playing, but you can by reading.
How to Check a Slot’s RTP in 10 Seconds
- Open the game, real money or demo.
- Tap the “i”, “?” or menu icon to open the info or paytable screen.
- Scroll to the bottom. Look for “Theoretical RTP”, “Return to player” or “Expected payback”.
- Compare it with the developer’s published figure. If it is noticeably lower, that casino runs a reduced version.
Some casinos make this easy. Our Spin Casino review found per-title RTP figures on the info screen for most games. If a casino hides the number, or the info screen shows no RTP at all, treat that as a reason to play elsewhere.
What RTP Means in Dollars
RTP is easiest to understand as a cost. Here is the average cost of 1,000 spins at C$0.50 a spin, which is C$500 wagered in total:
| RTP | Average cost of 1,000 spins at C$0.50 |
|---|---|
| 99% | About C$5 |
| 98% | About C$10 |
| 96% | About C$20 |
| 94% | About C$30 |
| 88% (progressive base game) | About C$60 |
A 99% slot costs a quarter as much to play as a 96% slot. That is the real argument for high RTP games. It is not that they make you win, but that the same entertainment costs less.
The catch is that these are averages over a very large number of spins. In a single session of a few hundred spins, volatility moves your result far more than a couple of RTP points do. Our explainer on how return to player works covers this in detail.
RTP, Volatility and Hit Rate Are Different Things
- RTP is the long-run share of bets returned. It tells you the cost.
- Volatility is how that return is delivered: many small wins, or rare big ones. It tells you the ride.
- Hit rate is how often a spin pays anything at all. It tells you how busy the game feels.
Two 96% slots can feel completely different. Many of the highest RTP games happen to be lower volatility, which is one reason they are popular with players clearing bonuses, as covered on our page about low volatility slots. Others pair a decent RTP with huge swings, as our page on high volatility slots explains.
RTP Myths Worth Ignoring
- “Casinos tighten slots after a big win.” A certified slot’s maths is fixed in the software. A casino chooses an RTP version for a game, but it does not change from spin to spin or player to player.
- “This slot is hot, it has been paying.” Every spin is independent. Recent results say nothing about the next spin.
- “Demo mode pays better than real money.” Reputable studios use the same maths in both. The demo is a fair preview of the game’s behaviour, although a short demo session proves little either way.
- “A higher RTP means more frequent wins.” Not necessarily. How often a game pays is about volatility and hit rate. A 98% game can pay less often than a 95% one.
- “The casino’s payout rate is the slot’s RTP.” A casino-wide figure blends every game. It cannot tell you what any single slot returns.
High RTP Slots and Casino Bonuses
Casinos know which games return the most, and bonus terms often keep them out of wagering. Excluded game lists are common, and high-RTP favourites feature on them regularly. Among casinos we review, Casimba excludes around 100 individual slots from wagering, Caxino counts about 27 slots at 0%, and SpinsBro bans a long list of slots while a bonus is active. Supermeter-mode games such as Mega Joker are sometimes excluded specifically because of their high return.
Playing an excluded game with bonus money can void your winnings, so check the list before you play. Our explainer on welcome bonus wagering and game rules shows where to find it. If you simply want to play the best-paying games, a cash-only session or an offer with no wagering requirements avoids the problem.
Game-Level RTP vs Casino Payout Rates
Casinos sometimes publish an overall “payout rate” or “win rate”. That figure is a blend of every bet placed on every game, and it shifts with what players happen to play. Our LeoVegas review cites a GLI-verified 97.68% win rate in Ontario, for example. That is a useful sign of a fair, audited operator, but it does not tell you the RTP of the slot in front of you. For that, the info screen is the only reliable source.
Beyond Slots: Even Higher Returns
If a high return is what you are after, a few non-slot games go further still. Full-pay Jacks or Better returns 99.54% with correct strategy, as our page on video poker pay tables shows, and blackjack with good rules and basic strategy returns about 99.5%. The trade-off is that both need you to make correct decisions, while a slot’s RTP is fixed whatever you do.
Where to Play High RTP Slots in Canada
Ontario’s regulated casinos carry most of the big studios, and our list of licensed Ontario casino sites covers them. Alberta’s regulated market opened on July 13, 2026, and our page on Alberta online casinos tracks who is live. Outside those provinces, offshore casinos serve most players, and the RTP version a casino chooses matters more there, because standards vary. Our main roundup of real money slots in Canada compares slot sites more broadly.
How We Assess RTP at Casinos
We check whether casinos show per-game RTP before you play, compare displayed figures with developers’ published ones where we can, and read bonus terms for excluded high-RTP games. Licensing, testing labs and payout speed come from our full reviews and our review methodology. Independent testing is what makes a published RTP trustworthy, as our explainer on whether online casinos are rigged explains.
A Lower Cost Is Still a Cost
Even a 99% slot is a game the house wins over time. Choosing high RTP games makes your entertainment cheaper, not free. Set a budget, take breaks and never chase losses. Our page on responsible gambling in Canada lists support services in every province.
Written by Ethan Walsh, OCCG casino reviewer. RTP figures are those published by each developer for the standard version; casinos can run lower versions, so check the game’s info screen. Casino details come from our individual reviews. If something has changed, let us know.
Frequently Asked Questions
Which online slot has the highest RTP?
Among widely available slots, Playtech’s Ugga Bugga at 99.07%, followed by Book of 99 at 99% and Mega Joker at up to 99% in Supermeter mode. Always check the version your casino runs.
What is a good RTP for an online slot?
Around 96% is the norm for modern video slots. Anything from 97% up is good, and 98% or more is excellent. Progressive jackpot games usually sit lower in the base game.
Can the same slot have a different RTP at different casinos?
Yes. Many studios offer several RTP versions of the same game, and the casino chooses which to run. The game’s info screen shows the figure at your casino.
Does a high RTP slot mean I will win?
No. RTP is an average over a very large number of spins. In a single session, volatility and luck decide your result. A high RTP lowers the average cost of playing.
How do I find a slot’s RTP?
Open the game’s info or paytable screen and scroll to the bottom. Look for “Theoretical RTP” or “Return to player”.
Are high RTP slots allowed when wagering a bonus?
Often not. Many casinos list high-RTP favourites among excluded games, and playing them with bonus money can void winnings. Check the excluded games list first.
What is the difference between slot RTP and a casino’s payout rate?
Slot RTP is set for one game by its developer. A casino’s payout rate blends every bet on every game. Only the game’s own RTP tells you what that slot costs to play.
Do high RTP slots have low volatility?
Often, but not always. Blood Suckers and 1429 Uncharted Seas pair high RTP with low volatility, while other games combine a decent RTP with big swings.