Bonus Buy Slots on a whole have changed the way that many are playing slot games and also how they are being designed. Instead of having to play through extended sessions and hoping that you can hit a three or four scatter to trigger the free spins and players can now pay for direct access through a fixed stake and enter a bonus feature immediately. This has been a game changer for online slot players but also the developers!
It does all sound simple but modern bonus buy slot games have become very sophisticated. For example, one game could offer a single 100x feature, while others could be as low as four or five times stakes and offering different options around the feature. This is why it is important to shop around, with exciting bonus buy slot features to be had across many of the top industry games today.
We have put together an extensive guide covering bonus buy slots – covering what they actually are and how UK players can find them, with them being banned just a few years ago.
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What Are Bonus Buy Slots?
The most common question of all for general casino fans and that is what exactly are bonus buy slots? They can be called a host of different names from feature buy slots, buy bonus slots through to buy free spin slots. They all mean the same thing and allow casino players to pay an upfront fee and this will trigger them to automatically get access to the bonus feature of the game.
An example of this in motion:
Imagine a slot where you are playing at £0.20 per spin.
If its Bonus Buy costs 100x the stake: £0.20 × 100 = £20
Paying £20 would take you directly into the selected feature rather than requiring you to trigger it naturally.
Importantly, that £20 is still a wager.
Buying a feature does not mean buying a win, and there is no guarantee that the resulting bonus will return the amount paid for it.
That distinction is one of the most important things to understand about Bonus Buy games.
Check out this popular bonus buy slots video below of ‘Vegas Matt‘ – where he players some exciting bonus buys for casino fans to follow.
Bonus Buy Slots And UK Casinos – What Happened?
There is an important distinction between UK regulated slots and Bonus Buy games found at casinos operating under other regulatory frameworks.
Feature buy in functionality raised concerns with the UK Gambling Commission because it allowed customers to stake substantial sums to access bonus features directly. Operators identified as offering these products were instructed to remove them.
UK regulated online slots are also subject to wider design restrictions intended to reduce the intensity of play.
This means UK players searching for unrestricted Bonus Buy functionality will generally encounter it outside the standard UKGC regulated slots market.
Players should therefore check the operator, licence, applicable regulation and player protections independently before depositing.
The UKGC also banned bonus buy slots in the UK with the initial crackdown starting in 2019, before implementing this for everyone by the end of 2021. This change led to a complete change in the player market around online slots within the UK.
Best 5 Bonus Buy Slots Casinos – Feature List For UK Players
Our experienced team has reviewed the entire industry and put together this exclusive featured list of the top 5 bonus buy slot casinos that are available for UK players, so go and check them out!
1. Night Win Casino – Best Overall Bonus Buy Casino
Night Win Casino takes our first position for players primarily interested in modern, feature driven slots.
The attraction of a casino like Night Win is the opportunity to explore games beyond the more restricted format familiar to players from the UK regulated slots market. Depending on the game and player jurisdiction, this can include titles featuring direct Bonus Buys, multiple feature purchases and other mechanics.
For slot enthusiasts, the biggest advantage is choice. Rather than concentrating exclusively on traditional free spin games, players can look for newer releases built around multipliers, cascading wins, persistent wilds and premium bonus rounds.
Why consider Night Win for Bonus Buy slots?
- Good option to research for modern feature driven slots
- Suitable for players looking for new releases
- Potential access to standard and enhanced Bonus Buy formats where available
- Mobile friendly format is important for feature-heavy games
- Worth checking for high volatility slot collections
Best suited to: Players wanting an all round Bonus Buy casino to explore.
What to check: Confirm which Bonus Buy titles are currently enabled for your location, alongside the casino’s current operator, licence, banking rules and withdrawal terms.
2. Bet Ninja Casino – Best for High Volatility Bonus Buys
Players who prefer the more aggressive side of modern slots may want to explore Bet Ninja Casino.
High volatility Bonus Buy games can be dramatically different from ordinary slot play. Rather than hundreds of relatively inexpensive spins, a player may commit the equivalent of 100x, 200x or considerably more of their normal stake to a single feature.
Bet Ninja therefore makes the most sense to research if your priority is finding games built around powerful bonus mechanics rather than simply having the largest possible general casino lobby.
They also offer many exciting features from Super bonus buys through to Special wilds and Enhanced Free Spins.
These mechanics can make the bonus round the central attraction of the game.
Best suited to: Experienced slot players specifically interested in high volatility feature gameplay.
Bonus Buy tip: Always convert the advertised multiplier into its actual cash cost before purchasing a feature. A 250x feature at £0.40 costs £100.
3. Zizo Bet Casino – Best for Bonus Buy Variety
Zizo Bet Casino is another international casino to investigate when variety matters more than concentrating on one particular type of feature.
Modern Bonus Buy games don’t follow a single formula.
Depending on the software provider, players may encounter conventional free-spins purchases alongside mystery features, enhanced bonuses, Super Bonuses, multiplier rounds and alternative feature modes.
That makes the software providers available at Zizo Bet particularly important.
Best suited to: Players who like switching between different Bonus Buy mechanics.
What to look for: Pragmatic Play, Hacksaw Gaming, Nolimit City, Relax Gaming, BGaming and other feature focused developers, subject to their current availability.
4. Bananzia Casino – Best for New Bonus Buy Slots
Bananzia Casino is one to research if discovering new slots is your main priority.
This matters because the Bonus Buy category continues to evolve quickly.
The original format generally involved paying around a set multiple of the stake and receiving a standard free-spins feature. Newer games can contain entire menus of purchasable features.
For example:
| Feature Type | What You Could Encounter |
| Standard Buy | Direct entry to normal bonus |
| Enhanced Buy | Improved starting conditions |
| Super Bonus | Premium, higher-cost feature |
| Mystery Buy | Random feature or outcome |
| Feature Chance | Increased chance of natural trigger |
The precise mechanics and prices depend on the individual game.
Bananzia is therefore better approached as a place to look for new feature driven releases, rather than judging it purely by the total number of slots displayed in its lobby.
Best suited to: Players who regularly search for newly released Bonus Buy games.
What to check: Sort by new releases where possible and then inspect each game’s information panel for feature price, RTP, volatility and maximum win.
5. Vegas Nova Casino – Best for Exploring Different Slot Styles
Rounding out the five is Vegas Nova Casino, which is worth researching for players who don’t want their entire casino experience centred around one type of slot.
Bonus Buy games themselves now cover numerous styles.
You might move from a classic free spins purchase to a Megaways bonus, then to a highly volatile multiplier game or a feature containing persistent wilds and collectors.
This variety can be more interesting than repeatedly purchasing essentially the same free spins mechanic.
Vegas Nova therefore fits players looking for a broader casino experience while still wanting to investigate whether Bonus Buy games are available for their jurisdiction.
Best suited to: Players who want Bonus Buy slots alongside a wider selection of casino games.
What to check: Confirm the current games catalogue, providers, operator information, licence, payment options and feature availability before registering.
Top 5 Bonus Buy Casinos at a Glance
| Bonus Buy Casino | Our Focus | Best For |
| Night Win Casino | All round feature selection | Bonus Buy players generally |
| Bet Ninja Casino | High volatility features | Experienced slot players |
| Zizo Bet Casino | Different Bonus Buy formats | Variety |
| Bananzia Casino | New feature driven releases | New slot hunters |
| Vegas Nova Casino | Broader slot experience | Exploring different game styles |
Bonus Buy Slots Are No Longer All the Same
Bonus Buy slots have evolved considerably. Early versions usually gave players one simple choice: continue spinning normally or pay a fixed multiple of the current stake to enter the free-spins feature immediately.
Newer feature-driven slots can be very different. A single game may contain several purchase options, each with its own price, starting conditions and level of volatility. This means the cheapest and most expensive buttons can effectively provide completely different versions of the same bonus round.
The table below explains the most common feature-purchase formats and how they can differ. Prices are examples rather than fixed industry rules, as every slot can use a different mathematical model.
| Feature Type | Example Price | £0.20 Stake Example | What It Does | Typical Intensity |
|---|---|---|---|---|
| Feature Chance Bonus Booster | 3x–10x | £0.60–£2.00 | Instead of taking you directly into the bonus, Feature Chance usually increases the probability of triggering the feature naturally. The exact mechanic varies by game. | Lower |
| Standard Bonus Buy Direct Feature Entry | 50x–100x | £10–£20 | The traditional Bonus Buy. Paying the displayed amount takes you directly into the game’s normal free-spins or bonus feature rather than waiting to trigger it through regular spins. | Medium |
| Enhanced Bonus Buy Upgraded Feature | 100x–200x | £20–£40 | Provides direct entry to a modified or enhanced version of the bonus. Depending on the game, this could mean stronger starting conditions, extra special symbols, higher multipliers or another change to the normal feature. | High |
| Super Bonus Premium Feature | 200x–500x+ | £40–£100+ | Usually the premium feature purchase. A Super Bonus may introduce special starting symbols, upgraded multipliers, enhanced wilds or another higher-volatility version of the normal bonus. Exact mechanics depend entirely on the slot. | Very High |
| Mystery Buy Random Feature | Varies | Game Dependent | Rather than purchasing one clearly defined bonus, the game uses a random mechanic to determine which feature, modifier or bonus configuration is awarded. | Variable |
Feature Chance
Feature Chance sits between ordinary spinning and a full Bonus Buy. Rather than guaranteeing entry into the bonus, it generally modifies the game so that the feature has an increased chance of appearing. The player is therefore paying more per spin without directly purchasing the bonus itself.
Standard Bonus Buy
This is the classic format most players associate with Bonus Buy slots. You pay a specified multiple of your current stake and immediately enter the standard bonus round. The purchase guarantees access to the feature, not a profitable result.
Enhanced Bonus Buy
An Enhanced Buy goes beyond simply entering the normal feature. Depending on the game, the bonus could begin with improved conditions such as additional special symbols, altered multipliers or another mechanic that changes how the feature plays.
Super Bonus
Super Bonuses generally sit towards the top of the feature-price ladder. They can cost several hundred times the normal stake and may unlock a premium version of the bonus. Their higher price does not guarantee a higher return from an individual purchase.
Mystery Buy
Mystery Buys introduce another layer of randomness. Instead of selecting one known feature, the purchase can lead to one of several possible bonus configurations. Players should check the game’s rules to understand the possible outcomes before purchasing.
Feature Buy Menu
Some modern slots combine several of these options into one feature menu. This means two players using the same stake on the same game could experience very different gameplay depending on whether they choose the standard, enhanced, mystery or premium feature.
A more expensive feature can change the starting conditions or mechanics of a bonus, but the purchase price should never be interpreted as a guaranteed return. Always convert the multiplier into its actual cash cost and check the individual game’s rules, RTP and volatility before confirming a feature purchase.
Standard Bonus Buy vs Super Bonus
One of the biggest developments in modern Bonus Buy slots is the introduction of premium or Super Bonus features. Rather than simply charging more money for exactly the same free-spins round, developers can use the higher-priced feature to change the way the bonus begins or operates.
That distinction matters. A Super Bonus should not automatically be interpreted as a bigger or guaranteed win. It may instead be a different mathematical version of the feature with alternative mechanics, starting conditions and volatility.
Direct entry into the game’s normal bonus round. This could include regular free spins, the standard multiplier system and the usual special-symbol mechanics.
A more expensive feature that may change the starting conditions, special symbols, multipliers, wilds or other mechanics used within the bonus.
| Feature | Standard Bonus Buy | Super Bonus | Why It Matters |
|---|---|---|---|
| Entry | Direct access to the regular bonus or free-spins feature. | Direct access to an enhanced or alternative version of the feature. | The two purchases may lead to different versions of the same game’s bonus. |
| Free Spins | Regular Free Spins | Premium Variant | A Super Bonus may alter the number, type or starting conditions of the free spins. |
| Multipliers | Usually begins with the normal multiplier progression specified by the game. | May begin with higher multipliers or use an enhanced multiplier mechanic. | Starting conditions can affect how the feature develops, but they do not guarantee a particular return. |
| Special Symbols | Standard frequency and distribution according to the normal feature rules. | May guarantee or introduce additional special symbols at the start of the feature. | Certain games build their most valuable mechanics around special symbols. |
| Wild Mechanics | Normal wild behaviour for the standard free-spins round. | Could include enhanced, persistent, expanding or otherwise modified wild mechanics. | Wild behaviour can substantially change how combinations form during the feature. |
| Collectors | Collector symbols may need to appear or build naturally during the bonus. | Some games may begin with collectors already active or improve their starting conditions. | Collector mechanics can influence multipliers, values or other special features. |
| Retriggers | Uses the game’s normal retrigger rules. | Retrigger conditions may differ if the premium feature uses a separate bonus configuration. | Always check the individual game’s paytable; Super Bonus does not universally mean easier retriggers. |
| Reel Setup | Normally follows the standard bonus reel configuration. | Certain games may use a different reel setup, symbol distribution or feature configuration. | A changed configuration can mean the premium feature behaves differently rather than simply paying more. |
| Purchase Price | Lower Typically the cheaper direct-entry option. | Higher Can cost several times more than the standard feature. | The actual cash amount should be calculated before confirming the purchase. |
| Risk Profile | High | Potentially Very High | More of the player’s balance can be committed to one individual outcome. |
What Does the Difference Look Like in £?
Imagine a hypothetical slot played at £0.20 per spin with a 100x Standard Buy and a 400x Super Bonus.
In the example above, the Super Bonus costs four times as much as the Standard Bonus Buy. That does not mean it will return four times as much money. The higher price may instead purchase different starting conditions, mechanics or a more volatile version of the feature. Individual results remain chance-based.
Bonus Buy Slots – Important Numbers That Are Often Missed
One of the most important details that are often missed around this feature comes from the bonus buy RTP. RTP means Return to Player and represents the theoretical percentage returned across a very large number of wagers.
Some games use the same theoretical RTP for:
- base game spins
- naturally triggered bonuses
- purchased bonuses
Others can use different configurations.
Therefore, don’t assume that buying the feature automatically improves the theoretical return.
The game’s information screen should be the reference point.
Also remember that RTP is a long term mathematical measurement. It does not predict what will happen during an individual feature purchase.

Volatility Importance When Buying Feature Slots
When it comes to bonus buy games and the volatility is important, with different options of games offering different volatility slot games to choose from. These can be found across three sections – medium high volatility, high volatility and then extreme volatility.
Medium High Volatility
Results may be somewhat more distributed, although individual feature outcomes can still vary considerably.
High Volatility
Larger wins may be possible, but weak or losing bonus rounds can occur frequently.
Extreme Volatility
These games can concentrate much of their theoretical potential into rare outcomes and are most suitable for those players looking for the big jackpot wins!
Best Bonus Buy Slot Developers to Look For
Bonus Buy slots are particularly associated with developers that build feature-heavy games around free spins, multipliers, persistent symbols, collectors and high-volatility mechanics. However, each studio approaches the Buy Feature concept differently.
That means finding the right slot developer can sometimes be more useful than simply choosing the casino advertising the largest number of games.
Pragmatic Play
Pragmatic Play helped make the straightforward Buy Free Spins format familiar to a large international audience. Many of its feature-driven slots combine free spins with multipliers, tumbling wins and straightforward bonus mechanics that are relatively easy to understand.
Hacksaw Gaming
Hacksaw Gaming takes a different approach to the traditional single Buy Feature button. Many of its feature-heavy releases offer several bonus choices, potentially ranging from standard features to more expensive premium configurations.
Nolimit City
Nolimit City is associated with the more complex end of feature-driven slot design. Its games are known for unusual mechanics, distinctive bonus systems and high-volatility gameplay that can be considerably more complicated than a conventional free-spins feature.
Relax Gaming
Relax Gaming is closely associated with the Money Train series and other feature-focused slots. Its games can combine collectors, persistent symbols, multipliers and special characters that become more important as a bonus develops.
BGaming
BGaming provides a mixture of more traditional slots and newer feature-focused formats. This makes the studio worth exploring for players who prefer variety rather than concentrating exclusively on one style of Bonus Buy mechanic.
Bonus Buy Developers Compared
| Developer | Known For | Typical Feature Style | Example Game / Series |
|---|---|---|---|
| Pragmatic Play | Accessible feature-driven games | Free spins & multipliers | Sweet Bonanza |
| Hacksaw Gaming | Multiple feature choices | Standard & premium features | Wanted Dead or a Wild |
| Nolimit City | Complex high-volatility games | Elaborate feature systems | Mental / San Quentin |
| Relax Gaming | Progressive bonus mechanics | Collectors & persistent modifiers | Money Train series |
| BGaming | Broad game variety | Traditional & experimental | Varies by release |
Pragmatic Play tends towards recognisable free-spins and multiplier formats, Hacksaw Gaming frequently experiments with multiple feature choices, Nolimit City is associated with more complex high-volatility mechanics, Relax Gaming makes heavy use of progressive bonus systems and collectors, while BGaming provides a broader mixture of formats. Individual mechanics vary by title, so the game’s rules should always be checked before purchasing a feature.
Check List For Players Looking To Buy The Bonus
Before pressing the Buy Feature button, check these five numbers:
1. Normal Stake
How much are you wagering per standard spin?
2. Feature Multiplier
Is the feature 50x, 100x, 200x or 500x the stake?
3. Actual Purchase Cost
Convert the multiplier into pounds rather than thinking purely in “x”.
4. RTP
Check the game’s information screen for the RTP applicable to the feature and game configuration.
5. Maximum Win
The advertised maximum provides context about the game’s potential, but it should never be interpreted as a likely outcome.
Together, these figures provide a much clearer picture than simply looking at screenshots of the bonus round.
Can You Play Bonus Buy Slots on Mobile?
In markets where the feature is permitted, many modern Bonus Buy slots are designed for both desktop and mobile.
The experience can actually feel more streamlined on a smartphone because the feature menu is normally built directly into the game interface.
Before playing, however, check that the mobile version displays:
- feature price
- current stake
- available balance
- game rules
- RTP information
- feature description
- maximum win information
A Buy button should never be treated as a substitute for reading the game’s rules, so it is important to always check this prior to playing.

The Difference Between Bonus Buy Slots vs Normal Slots
| Feature | Bonus Buy Slots | Standard Slots |
| Bonus Access | Can be purchased where permitted | Triggered naturally |
| Upfront Feature Cost | Potentially high | None beyond normal spins |
| Gameplay | Feature-focused | Base game + bonuses |
| Volatility | Often high | Low to extreme |
| Session Pace | Can concentrate wagering | Usually more gradual |
| Feature Choice | Often multiple options | Usually predetermined |
| Best For | Players specifically seeking bonus mechanics | Traditional slot play |
Neither format changes the underlying fact that slot outcomes are chance-based.
New UK Bonus Rules in 2026 – The Facts
Players using UKGC licensed gambling sites should also be aware that separate rules governing casino promotions changed in January 2026.
UK licensed operators can no longer apply wagering requirements above 10x bonus funds, and certain mixed product promotional offers are prohibited.
Those rules concern promotional bonuses rather than purchasing an in-game slot feature, but the distinction is worth understanding because the word “bonus“ is used for both.
A casino welcome bonus and a slot Bonus Buy are two completely different things.
Bonus Buy Slot Finder
Compare Bonus Buy slots using the numbers that actually matter. Select your preferences below to narrow the list.
Bonus Buy Slots FAQ
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What is a Bonus Buy slot?
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Is buying a bonus guaranteed to win?
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How much does a Bonus Buy cost?
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What does 100x Bonus Buy mean?
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What is a Super Bonus Buy?
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Do Bonus Buys have better RTP?
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Are Bonus Buy slots high volatility?
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Can I play Bonus Buy slots at UKGC casinos?
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Can I use casino bonus money on Bonus Buy slots?
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Which developers are known for feature heavy slots?
18+. Gambling involves risk and there is no guaranteed way to win. Set limits appropriate to your circumstances and never gamble with money you cannot afford to lose.