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What does max win probability mean?
There is always considerable discussion about maximum wins on online slots, as these amounts can reach extremely high numbers. The higher the max win, the better, right?
Well, it is not so clear-cut.
Of course, any gambler wants to win money and, preferably, as much as possible.
However, not only can the max win vary from one game to another, but this also applies to something called the max win probability – your actual odds of landing the max win.
But what are your chances of winning one of those max wins?
While you may have a decent to fair chance of landing the max win on one slot, your odds may be abysmal on another slot.
This is what we will sort out on this page.
We will explain how the max win probability works, look at some examples, and give you the max win chances on some of the most popular slots and much more.
One thing is certain: after visiting this page, you will learn much about max win probabilities on online slots.
Max Win Probability Explained
The max win probability refers to the odds or chances of winning a max win on an online slot.
It’s a bit like playing the lottery. For example, the odds of winning the EuroMillions jackpot are about 1 in 139 million.
Some online slots offer a max win probability that is much more achievable than the biggest lotteries, although your chances are still slim (to say the least). Meanwhile, other slots resemble the odds of winning a lottery jackpot.
Max Win Probability Examples
The best way to explain the max win probability is to look at some real examples.
Tombstone Slaughter El Gordo’s Revenge
Let’s start with one of the best slots for big wins (excluding jackpots), Tombstone Slaughter El Gordo’s Revenge. You can win up to 500,000x the bet on this brutal Nolimit City slot.
Yes, that is a cool million when playing with a £2 bet per spin if you land the max win in this game.
Well, two things are working against you.
- The crazy volatility level (12/10)
- The max win probability
So, how likely (or unlikely) do you think it is that you will win a max win on Tombstone Slaughter El Gordo’s Revenge?
The max win probability of winning the 500,000x grand prize is 1 in 189 million.
This means that, on average, it will take 189 million spins before someone wins the huge max win.
Of course, you can land other big wins in this slot, too, but the max wins don’t come around very often.
Gates of Olympus 1000
Gates of Olympus is one of the most popular online slots, and an enhanced version of the game was released in December 2024, called Gates of Olympus 1000.
The max win increased from 5,000x to 15,000x while pretty much the rest stayed the same.
So, what are your chances to win this max win?
1 in 697,350 is the max win probability on Gates of Olympus 1000 to grab that 15,000x max win. Those are amazing odds for such a high max win.
Sugar Rush 1000
Another popular slot is Sugar Rush, and a bigger version of this game is also available, the aptly-named Sugar Rush 1000.
The max win in Sugar Rush 1000 is a hefty 25,000x the bet.
Don’t expect this to happen too often, as the chances of winning that grand prize are 1 in 12.8 million spins.
Popular Slots Max Win Probability
We did some digging and found the stats for the following popular online slots:
| Slot | Max Win | Max Win Probability |
| San Quentin 2: Death Row | 200,000x | 1 in 1.5M spins |
| Sugar Rush | 5,000x | 1 in 2.3M spins |
| Big Bass Bonanza | 2,100x | 1 in 3.9M spins |
| Mental | 66,666x | 1 in 18M spins |
| Tanked | 25,000x | 1 in 30M spins |
| Holy Hand Grenade | 20,000x | 1 in 58M spins |
| Sweet Bonanza 1000 | 25,000x | 1 in 71M spins |
| Honey Rush 100 | 50,000x | 1 in 100M spins |
These figures sometimes look odd because the max win correlation with the max win probability doesn’t always make sense. However, these examples illustrate the difficulty of achieving a maximum win on online slots.
Some players can go through many thousands of sessions without landing any max wins, while others play a lot less but still manage to land a max win or even two. Ultimately, it is about luck, as the chances of landing max wins are so low.
However, as a tip, Nolimit City slots are generally relatively easy to land max wins on. There is a reason Nolimit City slots are so popular with casino streamers: viewers love seeing big wins, and this provider often delivers.
You cannot affect luck, but you can decide which RTP version to play when several payout versions are available, including on Nolimit City slots.
Does the max win probability change if you increase (or lower) your bet?
Betting with a higher amount per spin can increase your chances of winning the main prize in jackpot slots like Mega Moolah.
However, this does not apply to standard online slots.
So, when playing an online slot (excluding jackpots), it will not matter if you bet the minimum available bet per spin (usually 10p – 20p) or the max bet allowed of £2 (aged 18-24) or £5 (aged 25+); it will not increase or decrease your chances of winning a maximum win.
So, in other words, your chosen bet level per spin does not affect the max win probability.
There are some exceptions, though. Some studios, such as Hacksaw Gaming, Nolimit City and Pragmatic Play, offer enhanced bets on their slots, which often increase the chances of landing a bonus feature or a high-paying combination.
Of course, when you play these enhanced bets, your odds of landing the max win increase, but at an extra cost.
What about if you’re winning or losing?
Some might think that the max win probabilities might change if you experience a “hot” or “cold” session, but this couldn’t be further from the truth.
All online slots use a random number generator, so your future spins are never affected by your previous ones. It’s all about luck, so wins won’t continue just because you’re experiencing a successful session or vice versa. It’s all random.
The same applies to the max win probability. It does not matter if you are winning or losing. The odds of landing a max win stay the same.
Is there any correlation between the RTP and the chances of landing a max win?
This is where things get interesting.
Does a lower RTP decrease your chances of landing a max win on online slots?
Well, in theory, it would, as you get fewer spins on average when playing on a lower RTP version of the same slot when a higher RTP option is available.
At CasinoWizard.com, we always guide you toward the best-paying versions of all slots in our slot reviews.
However, we can’t say for sure. A lower RTP will most likely affect the smaller to medium wins more often, as online casinos need to make up for that changed RTP margin from somewhere.
Fewer small and medium wins will drain your bankroll faster, leading to you getting fewer spins on average and casinos increasing their profits.
Because max wins happen so rarely, the max win odds are probably not affected if you play on a lower RTP version, but we can’t guarantee this.
How good (or bad) are your chances of hitting a max win on other online slots?
Landing a max win on slots is very rare, but it happens. What are the chances of it happening to you?
We can’t control luck, but you need plenty of it to hit big wins or walk away a winner. The reason is that the odds are stacked against us.
All online slots are designed to make online casinos the only long-term winners. That is when we sum all wagering from all players.
The game’s RTP percentage largely determines how much casinos retain in the long run. The lower the RTP, the more casinos will win (long-term), and the higher the RTP, the more chances and spins you will get on average.
Ok, so then we have the max wins. These have odds too, or max win probabilities. What are the chances of landing a max win? Well, it varies.
Some game studios reveal the max win probabilities on their games, while others don’t. The good news is that we have researched and found some of the best ones for you.
These slots offer better max win probabilities than the norm:
| Slot | Max Win | Max Win Probability |
| Nine to Five | 9,217x | 1 in 148k spins |
| Outsourced | 5,000x | 1 in 185k spins |
| Reel Banks | 5,000x | 1 in 210k spins |
| Karen Maneater | 11,757x | 1 in 330k spins |
| Fruit Party 2 | 5,000x | 1 in 495k spins |
| Wild Beach Party | 5,000x | 1 in 495k spins |
| Gates of Olympus | 5,000x | 1 in 697k spins |
| Whacked! | 11,912x | 1 in 900k spins |
Which game studios reveal the max win probability of their slots?
Pragmatic Play, Play’n GO, and Nolimit City are three game studios prepared to reveal the maximum win probabilities of their games.
However, you won’t find the information in their game information sheets, even if you bring a magnifying glass to read through them all.
Instead, you can find the max win probabilities on these games by checking through slot reviews on UK comparison sites like CasinoWizard.com.
What about other popular slot developers and their max win probabilities?
Well, sorry to disappoint, but most game studios don’t want to share this info with you.
Some of the game providers that don’t reveal their max win probabilities include:
- Big Time Gaming
- ELK Studios
- Relax Gaming
- Push Gaming
- Hacksaw Gaming (except for some slots)
- NetEnt (except for some slots)
- and others
So, your guess of those games’ max win probabilities is as good as ours.
Why don’t they do that?
Perhaps they don’t want their competitors to gain insight into their statistics, or the odds are too unfavourable to share with the players.
Worst slots to get a max win on
Quickspin and Play’n GO are two game studios that have gained a reputation for having near-impossible odds of landing max wins on their slots.
Now, we are not saying we don’t like their slots. Heck, some of our favourite games include Book of Dead, Reactoonz, Cash Truck, and Moon Princess.
Of course, it is possible to win big when playing these slots, but the max wins don’t come around very often.
These are some of the max win probabilities that we have found on Play’n GO and Quickspin slots, and it’s no pretty sight:
| Slot | Max Win | Max Win Probability |
| Sticky Bandits Trail of Blood | 17,279x | 1 in 100M |
| Invading Vegas Revenge on Mars | 2,500x | 1 in 500M |
| Myth of Dead | 3,000x | Less than 1 in 1 billion |
| Gemix 100 | 25,000x | Less than 1 in 1 billion |
| Rise of Olympus Origins | 20,000x | Less than 1 in 1 billion |
| Oasis of Dead | 5,000x | Less than 1 in 1 billion |
| Big Bad Wolf Megaways | 30,540x | Less than 1 in 100 billion |
Future of max win probabilities
Unfortunately, we can expect Return To Player (RTP) percentages to decrease as online casinos battle stricter regulations, increased taxes, and lower overall margins.
Since most online casinos nowadays offer various payout configurations, we have seen a trend where the majority of UK-licensed (and other regulated markets) operators choose to offer their players a 94% RTP version (or lower) of a game instead of the 96% option. Sadly, the 94% configuration will eventually become the new reality.
This will affect the max win probabilities because you get fewer spins from your hard-earned cash.
However, we can expect the actual max win odds to remain at similar levels in the near future as well.
There will be some slots, like Nine To Five, that are designed to create a max-win hype, since more players than usual will experience them.
This is especially important for slot streamers, who want to showcase big wins to their audience.
Meanwhile, we will see a similar pattern on other online slots, as we are used to today, where some max wins are basically impossible to reach. In contrast, others are theoretically possible to land, although the truth is that you probably won’t get many of them, if any.
The chance is always there, though, and it’s part of the charm of playing online slots. However, as you now know, some games offer better max win probabilities than others.
