Bonus Buy Slots UK are a category of online casino games which allow players to pay a set fee and gain instant access to the bonus feature rounds, these are the highest paying part of any online slot and most exciting! they normally come with additional wilds, huge multipliers, re-spins, sticky wilds and random prize drops. In this article we will tell you everything there is to know about slots where you can buy the bonus and the best bonus buy casinos which offer them to UK players!
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What Are Bonus Buy Slots UK?
Bonus Buy slots UK are slots where you can buy the bonus feature in the UK, (also known as Buy Feature Slots or Buy the Bonus Slots) they are a hugely popular category of online slot games that allow players to skip the base game and pay a fixed fee to instantly access the bonus round or free spins feature. This mechanic offers higher volatility, faster gameplay and bigger win potential, which is why it’s so popular with UK slot players. It is extremely popular amongst players who prefer high risks with high potential rewards, it also saves a lot of time in base game play hoping to naturally hit the feature.
How Much Do Bonus Buy Slots Cost?
Bonus Buy slots offer players the option to pay directly for access to a game’s most exciting feature…. the bonus rounds. The cost of activating these bonus features varies depending on the slot title, volatility and the rewards tied to the bonus mechanics (max win amount). On average, bonus buy prices range from 50x to 200x your base bet, although some games offer flexible pricing models with multiple tiers.
Here’s a breakdown of typical bonus buy costs and what you can expect at each level:
20x – 75x Your Bet 💸
This price point is at the lower end (cheapest) and usually linked to the most basic free spins or bonus buy mode available in the game. These options tend to be low to medium volatility, which means payouts are more frequent but generally smaller in size.
Popular and brand new examples include:
- Le Cowboy (New Release From Hacksaw Gaming) – Bonus Hunt Feature Spins is only 3x your bet or Wild West Spins is 75x, making both options really much more affordable.
- The Count (New Release From Hacksaw Gaming) – Bonus Hunt Feature Spins is only 3x your bet or Fangtasia Feature Spins is 50x.
- Reel Rampage (New Release From Slotmill) – Hazard Spins for 10x your bet or Re-spins for 50x.
- Chaos Crew 2 (Hacksaw Gaming) – Low-cost bonus buy with quick access to re-spins.
- The Dog House Megaways (Pragmatic Play) – Standard free spins with sticky or raining wilds.
100x Your Bet 💥
The most common bonus buy cost is 100x, this gives you access to the game’s standard bonus round with balanced volatility around medium or in some cases medium/high. This is where you’ll find decent win potential mixed with a fair risk level, making it the perfect choice for most players wanting some bonus feature action.
Popular and brand new examples include:
- Frightening Frankie (New Release From Pragmatic Play) – Buy free spins for 100x.
- Zombie Road (New Release From Peter & Sons) – Buy free spins for 100x.
- Gates of Olympus (Pragmatic Play) – Enter the famous multiplier packed free spins.
- Book of Shadows (Nolimit City) – Gamble for expanding symbols with massive win potential.
- Sugar Rush (Pragmatic Play) – Cascading wins and multiplier zones create exciting bonus action.
150x – 200x Your Bet 🔥
The highest cost of slots where you can bonus buy are often priced between 150x and 200x your stake, or in some cases even up to 500x. These super volatile features offer higher risk but come packed with enhanced rewards such as guaranteed multipliers, stacked wilds or added reels, all of which can lead to the games maximum win potential.
Popular and brand new examples include:
- Sun Princess (New Release From Hacksaw Gaming) – Sunfire palace, 200x your bet for 10 free spins with stinky wild multipliers.
- Steam Runners (New Release From Hacksaw Gaming) – Gas Light District, 200x your bet for 10 free spins with stinky wild multipliers and one guaranteed wild on every spin.
- Dead or a Wild (Hacksaw Gaming) – Three different high-stakes bonus buys, including Duel and Dead Man’s Hand.
- Gemini Joker (Betsoft) – Super bonus buy adds multiplier reels and respin bonuses.
- Gem Elevator (Pragmatic Play) – A high risk slot where the premium bonus round promises max win potential.
Variable & Tiered Bonus Buy Options ⚙️
Some new slot titles give you the ability to choose from multiple bonus types, each priced differently based on volatility and added features. This flexibility makes the games hugely popular to all types of players, two great examples are:
Bullets and Bounty (Hacksaw Gaming) – Offers a variety of bonus buys:
- 20x (Quick Draw Feature) – Instantly triggers the shootout bonus with 1 spin to start. Every landed bounty symbol resets the spin counter to 1, keeping the round alive.
- 50x (Double Trigger Feature) – Starts the bonus game with 2 spins active. Each new multiplier or bounty icon resets the spin counter to 2, offering longer streaks and higher potential.
- 100x (Bounty Hunt Feature) – The standard full feature buy-in. Begins with 3 spins, resetting each time a bounty, multiplier, or collector symbol lands on the reels.
- 500x (Most Wanted Feature) – Unlocks the high roller version of the bonus with at least one persistent collector or sniper symbol active from the start. Every new icon resets the spin count to 3 and builds toward the slot’s massive win potential, up to 12,000x your stake.
Money Train 3 (Relax Gaming) – Offers a variety of bonus buys:
- 20x (1 Spin Feature) – Guarantees the bonus game is triggered with 1 starting spin. Every new symbol that lands in the bonus game will reset the spin count to 1.
- 50x (2 Spin Feature) Guarantees the bonus game is triggered with 2 starting spin. Every new symbol that lands in the bonus game will reset the spin count to 2.
- 100x (Original Feature) Guarantees the bonus game is triggered and every new symbol that lands in the bonus game will reset the spin count to 3.
- 500x (Persistent Feature) Guarantees the bonus game is triggered with 1 persistent symbol. Every new symbol that lands in the bonus game will reset the spin count to 3.
Top 6 Best Casinos With Bonus Buy Slots UK
Booming Slots – Best Jackpot Bonus Buys
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How Do Bonus Buy Slots Impact RTP Percentages
When choosing which slot to play, whether at a new online casino or a non-UK bonus buy casino — one of the most important stats to check is the Return to Player (RTP). This figure determines how much, on average, a game pays back to players over a long period. But what many don’t realise is that using the Bonus Buy feature can actually change a slot’s RTP.
Let’s break down how this works, why it matters, and which games show the biggest differences.
RTP Basics: What It Really Means
RTP (Return to Player) is expressed as a percentage of the total money wagered that a slot is designed to return to players over time.
For instance:
- A slot with 96% RTP will theoretically pay back £96 for every £100 wagered in the long run.
- This is not a short-term guarantee.. it’s based on millions of spins simulated by the game provider.
Generally, most high-quality online slots fall between 94% and 97% RTP, with newer releases often offering multiple versions depending on the operator and licensing region.
The higher the RTP, the better the long term value for players, making it a key consideration when choosing where to play.
Bonus Buy Features Can Increase RTP
In many bonus buy slots, purchasing the bonus round directly can actually boost the RTP compared to grinding through the base game. This is because:
- You skip the low-value spins and go straight into the high-potential bonus round.
- The game’s payout model adjusts slightly to reflect the premium you’ve paid for instant access to top-tier features.
- Some developers design separate RTP rates for standard play and bonus buy modes.
In simple terms: paying for the bonus may slightly raise your theoretical return — though it comes with a higher upfront cost and bigger risk.
RTP Comparison: Base Game vs Bonus Buy
Here are some examples showing how RTP can fluctuate between standard spins and bonus buys:
| Slot Title | Developer | Base Game RTP | Bonus Buy RTP | Bonus Buy Cost |
|---|---|---|---|---|
| Money Train 4 | Relax Gaming | 96.10% | 98.00% | 100x – 500x stake |
| Wanted Dead or a Wild | Hacksaw Gaming | 96.30% | 97.20% | 80x – 400x stake |
| Sugar Rush | Pragmatic Play | 95.50% | 96.52% | 100x stake |
| Le Bandit | Hacksaw Gaming | 96.19% | 97.30% | 100x stake |
| Big Bamboo | Push Gaming | 96.13% | 97.03% | 99x stake |
As you can see, most bonus buy slots deliver a 0.5% to 2% higher RTP when using the buy feature, a modest but meaningful boost for players who prefer high volatility gameplay.
Important Considerations
While bonus buys can increase RTP, they also:
- Raise volatility — meaning wins may be less frequent but potentially much larger.
- Cost significantly more per spin, often 80x–500x your base bet.
- Don’t guarantee profits — RTP is still based on long-term averages.
If you’re playing at non-UK casinos, you’ll often find the Bonus Buy feature fully enabled, unlike UKGC-regulated sites that have banned it. This makes offshore casinos a preferred choice for players who want complete control over how and when they trigger bonuses.
Summarising:
Bonus Buy slots add a thrilling, high stakes edge to modern online gaming. While the RTP often improves slightly when purchasing the bonus, players should treat this feature as a way to fast track excitement, not as a guaranteed profit strategy.
If you’re looking to explore the best Bonus Buy casinos with full RTP transparency and instant access to all slot features, top-rated options include:
- Bet Ninja Casino – Massive bonus buy slot library with RTPs up to 99%.
- Dracula Casino – High-volatility collection and lightning-fast payouts.
- Kingdom Casino – Over 3,000 bonus buy titles from Relax Gaming and Hacksaw Gaming.
Finding The Perfect Bonus Buy Slot – Step By Step Guide
1. Understand Slot Volatility: Choose the Risk That Fits You
Volatility describes how often a slot pays out on average and how big those wins might be. Here is a breakdown:
- 🎯 Low Volatility:
Expect frequent but smaller wins. These games are ideal if you want to play longer and stretch your funds. Bonus rounds in low volatility slots don’t usually pay massive amounts, but they’re easier to trigger which makes them exciting.
Example: Golden Fish Tank 2 by Yggdrasil offers frequent wins and fun customisation options in the bonus round. - ⚖️ Medium Volatility:
Offers a balance between win size and frequency. Great for players looking for solid entertainment with occasional bigger wins.
Example: Buffalo Stack’n Sync by Hacksaw Gaming which combines solid base wins with rewarding features. - 🔥 High Volatility:
These slots are all about the thrill and excitement which comes with the chance to win the games maximum win. Wins may be rare, but when they land, they can be enormous with some slot titles offering up to 250,000x. These are perfect if you’re a high risk/high reward thrill seeker.
Example: Tombstone RIP by Nolimit City is an extremely volatile slot with the potential for monster payouts up to 300,000x!!!.
Tip: Always check the volatility rating in the game’s info or paytable section before buying the bonus.
2. Check the RTP (Return to Player) Percentage – Higher The Better
RTP shows you how much a game returns to players over the long run (usually in percentages). The higher, the better!
- Standard RTP: Most slots fall between 94% and 98% however these can vary casino to casino.
- Bonus Buy RTP: When playing a bonus buy slot UK the RTP will often increases to around 97%-99.60%
Tip: Stick with bonus buy slots UK offering 97%+ RTP for the best long term value and chances of winning big.
3. Understand the Cost of the Bonus Buy Feature
The cost to gain access to the bonus round directly varies widely depending on the slot and its features:
- 💵 50x – 75x Your Bet:
Ideal for players with a smaller bankroll. These typically offer standard free spins without additional perks and features. - 💰 100x Bet:
This is the most common price option. You’ll get access to well balanced bonus rounds with decent potential. - 🔥 150x – 200x Bet:
Premium buys for big bonus features, higher volatility and a shot at max wins.
📌 Tip: Try a few spins on the standard base game to get a feel for the gameplay and features, then decide if you think buying the bonus feature is worth it.
4. Look for Bonus Features You Enjoy
Every bonus round is different, choose the ones that offer features you’ll find exciting:
- 🤑 Multiplier Free Spins:
Popular in games like Gates of Olympus where multipliers stack for explosive wins. - 🤩 Sticky or Expanding Wilds:
Perfect for building momentum during bonus rounds. Seen in games like Deadwood by Nolimit City. - 🧨 Tumbling/Cascading Reels:
Multiple wins from one spin, adding pace and unpredictability. Common in Sugar Rush by Pragmatic Play. - 🎰 Jackpot Features:
Bonus buys in some slots give you a chance at a jackpot prize—like in Mega Mine Nudging Ways by Relax Gaming.
📌 Tip: Always read the game’s paytable to see exactly what you’re getting before you buy in.
5. Try The Demo Mode First
Demo play is your best friend when testing new slots, especially ones with buy bonus features:
✔️ Learn how the bonus works before risking real cash!
✔️ Experiment with different bet levels!
✔️ Gauge volatility, potential return and preferred bonus rounds
Top 6 Most Popular Slots Where You Can Bonus Buy
1. Le Bandit (Hacksaw Gaming)
🎰 Type: Bonus Buy Slot with Cluster Pays & Mystery Symbols
⚡ Volatility: Medium (6/10)
💰 Max Win: 10,000x
👌 RTP: 96.34% – 98.42%
Overview:
Le Bandit is a fun crime themed bonus buy slot from Hacksaw Gaming, set in a mischievous French underworld where gold pots, multipliers and mystery symbols drive the action. This uniquely styled cluster pay game adds a layer of unpredictability with its cascading mechanics and 4 multiple bonus buy tiers. Its quirky visuals and surprise packed bonuses have made it a standout hit among UK players.
Key Features:
✔ Bonus Buy Options: Choose between 4 buy modes ranging from standard to super volatile options
✔ Pot Pays Feature: Land gold pots to reveal multipliers, instant wins, or free spins
✔ Mystery Symbols: Dynamic symbols turn into matching symbols to trigger big combos
✔ Cluster Wins + Cascades: Wins explode and make room for new symbols on every spin
2. Money Train 4 (Relax Gaming)
🎰 Type: Bonus Buy Slot with Scatter Pays
⚡ Volatility: Extremely High (10/10)
💰 Max Win: 150,000x
👌 RTP: 97.10%-99.60%
Overview:
Relax Gaming levels up with Money Train 4, the final ride in the legendary buy feature slot series. This high stakes slot is packed with new explosive features, gritty visuals and a collection of returning (and new) special characters. Known for its insane max win and layered bonus buy mechanics, this is one of the most popular bonus buy slots at non UK slots sites.
Key Features:
✔ Persistent Symbols: Unlock new characters that multiply, absorb, and boost win values.
✔ Feature Buy Menu: Choose from 4 unique bonus types with different volatility levels.
✔ Respins with Increasing Multipliers: Win big with every filled reel during the bonus.
✔ Ultra Buy Mode: Pay a premium for a shot at max volatility and the best characters.
3. Sugar Rush 1000 (Pragmatic Play)
🎰 Type: Bonus Buy Slot With Cluster Pays
⚡ Volatility: High (8/10)
💰 Max Win: 25,000x
👌 RTP: 97.50%-99.60%
Overview:
This sequel to the world wide fan favorite Sugar Rush, this new game takes everything up a notch, you can expect brighter visuals, more explosive clusters and even sweeter payout potential up to 25,000x!!!. Sugar Rush 1000 keeps its classic grid layout while adding improved multipliers and an upgraded Bonus Buy mechanic that’s now more affordable with various price options.
Key Features:
✔ Cluster Pays: Win with clusters of 5+ matching candies.
✔ Multiplier Spots: Consecutive wins boost multiplier values up to 256x.
✔ Bonus Buy Option: Instantly unlock the scatter-triggered Free Spins.
✔ Sticky Multipliers: Multis remain locked and built with every hit during the round.
4. Wanted: Dead or a Wild (Hacksaw Gaming)
🎰 Type: Bonus Buy Slot UK
⚡ Volatility: High (8/10)
💰 Max Win: 12,500x
👌 RTP: 97.28%-99.60%
Overview:
An iconic Hacksaw release from 2021 that continues to be one of the most popular buy feature slots in 2025, Wanted: Dead or a Wild is a gritty Wild West slot with intense audio, iconic visuals and three separate bonus buy options. With its high hit frequency of 19.30% and max win of 12,500x its easy to see why this is a classic and the most popular game at all leading credit card slots sites.
Key Features:
✔ Duel at Dawn: Expanding VS symbols battle for supremacy with high multipliers.
✔ Dead Man’s Hand: Collect wilds and multipliers before triggering the final shootout spin.
✔ The Great Train Robbery: Sticky Wilds remain locked for the entire feature.
✔ Bonus Buy Options: Choose your favorite of three distinct bonus rounds to purchase.
5. Big Bass Bonanza: Keeping It Reel (Pragmatic Play)
🎰 Type: Bonus Buy Slot UK
⚡ Volatility: Medium/High (7/10)
💰 Max Win: 10,000x
👌 RTP: 97.55%-99.60%
Overview:
Big Bass Bonanza: Keeping It Reel is the freshest entry in the Big Bass series, giving UK and non-UK players the chance to fish for huge wins. With its Buy Bonus feature and an upgraded fisherman mechanic, this slot series continues to be the biggest and most played in the world.
Key Features:
✔ Free Spins Bonus Buy: Get straight to the catch by buying the feature for 100x your bet.
✔ Fisherman Wilds: Catch cash prize fish during free spins with the help of the Wild fisherman.
✔ Collect & Level Up: Fill the meter to unlock higher multipliers and extra free spins.
✔ Mystery Fish Symbols: Add surprise wins into the bonus with floating fish prizes.
6. Gates of Olympus 1000 (Pragmatic Play)
🎰 Type: Bonus Buy Slot With Scatter Pays
⚡ Volatility: Extremely High (10/10)
💰 Max Win: 15,000x
👌 RTP: 97.35%-99.60%
Overview:
Zeus returns in Gates of Olympus 1000, the long awaited sequel to one of the most popular slots in online casino history. This new version supercharges the original with enhanced multipliers, bigger max wins and a higher risk Bonus Buy option which allows a maximum buy feature for £10,000! For those high rollers out there.
Key Features:
✔ Bonus Buy Feature: Jump straight into the upgraded Free Spins mode for 100x your stake.
✔ Enhanced Multipliers: Random lightning multipliers can now reach up to 1,000x during any spin.
✔ Tumbling Wins: Consecutive win reactions clear symbols, with each tumble offering new win potential.
✔ Persistent Bonus Multiplier: All multipliers collected during free spins are added to a global multiplier, boosting every subsequent win.
✔ Improved RTP for Bonus Buys: Bonus buy mode offers an increased RTP of up to 99.60% depending on your stake level.
Top 5 Newest Buy Feature Slot Releases
1. Chaos Crew 2 (Hacksaw Gaming)
📅 Release Date: July 29th, 2025
🎰 Type: Urban Punk Bonus Buy Slot
⚡ Volatility: Very High (10/10)
💰 Max Win: 20,000x
👌 RTP: 96.27% to 97.82%
Overview:
Following the cult success of the original, Chaos Crew 2 pushes volatility to the extreme. Hacksaw Gaming returns with its chaotic art style, intense bonus mechanics, and a brand-new Multiplier Collector feature that can skyrocket your wins during the Bonus Buy mode. With improved pacing, heavier audio, and multipliers that can chain across reels, this release is designed for players who thrive on high-risk, high-reward gameplay.
Key Features:
✔ Bonus Buy – 100x Bet: Instant access to the main bonus game.
✔ Multiplier Collector: Collect and multiply reel values for exponential growth.
✔ Super Bonus Mode: Upgraded version with higher volatility and enhanced symbols.
✔ Win Cap: Massive 20,000x max potential, one of Hacksaw’s highest yet.
2. Fire Stampede (Pragmatic Play)
📅 Release Date: September 5th, 2025
🎰 Type: Wild Safari Themed Bonus Buy Slot
⚡ Volatility: High (9/10)
💰 Max Win: 10,000x
👌 RTP: 96.40% – 98.10%
Overview:
Fire Stampede takes players deep into the blazing African plains where wild beasts trigger scorching wins. Pragmatic Play has built this one with a fresh Burning Wilds feature and the highly requested Bonus Buy free spins mode that delivers instant adrenaline. Expect stacked multipliers, fiery re-spins, and visuals that bring the savannah to life on every spin.
Key Features:
✔ Bonus Buy – 120x Bet: Jump directly into the free spins with Burning Wilds activated.
✔ Random Wild Re-Spins: Every spin can retrigger multipliers up to 25x.
✔ Jackpot Wheel Bonus: Randomly award Mini, Major, or Mega jackpots.
✔ Expanding Animal Symbols: Boosts payouts across all paylines during bonus play.
3. Money Cart: Reloaded (Relax Gaming)
📅 Release Date: June 17th, 2025
🎰 Type: Wild West Bonus Buy Slot (Sequel to Money Cart 3)
⚡ Volatility: Extreme (10/10)
💰 Max Win: 15,000x
👌 RTP: 96.70% – 98.00%
Overview:
Money Cart: Reloaded brings back the legendary crew from Relax Gaming’s Money Train series — with even faster pacing and deeper feature stacking. Every spin feels cinematic, and the Bonus Buy delivers direct entry into the action with persistent symbols active from the start. It’s one of 2025’s most anticipated bonus buy slots, loved by fans for its wild volatility and cinematic atmosphere.
Key Features:
✔ Bonus Buy – 100x / 500x Bet: Choose between classic or persistent symbol starts.
✔ Persistent Collector & Sniper: Stay active between spins for bigger combos.
✔ Expanding Reels: More symbols, more multipliers, more chaos.
✔ Bonus Chain Re-Trigger: Up to 5 bonus reactivations in one session.
4. Neon Frenzy (Nolimit City)
📅 Release Date: October 9th, 2025
🎰 Type: Cyberpunk Sci-Fi Bonus Buy Slot
⚡ Volatility: Very High (9.5/10)
💰 Max Win: 25,000x
👌 RTP: 96.43% – 98.22%
Overview:
Neon Frenzy is Nolimit City’s electrifying new release that blends cyberpunk visuals, soundtrack intensity, and brutal volatility. The Bonus Buy feature instantly transports players into a futuristic cityscape where charged wilds and split symbols dominate the reels. With massive payout potential and signature “xMechanics”, it’s a must-try for anyone who loves adrenaline-fuelled slot play.
Key Features:
✔ Bonus Buy – 75x to 500x Bet: Choose between Standard, Enhanced, or Super Bonus levels.
✔ xSplit & xBomb Mechanics: Multiply paylines and remove low-paying symbols.
✔ Electric Spins Mode: Triggers guaranteed high-value multipliers.
✔ Max Win Feature: 25,000x potential — one of Nolimit’s biggest to date.
5. Big Bass: Reel Repeat (Pragmatic Play)
📅 Release Date: August 11th, 2025
🎰 Type: Fishing Themed Bonus Buy Slot
⚡ Volatility: High (8/10)
💰 Max Win: 5,000x
👌 RTP: 96.50% to 98.25%
Overview:
Big Bass: Reel Repeat is the latest version of in Pragmatic Play’s world famous hit fishing series. It brings back the beloved fisherman with a twist, a “repeat reel” mechanic that gives bonus wins multiple chances to land again. This title builds on its previous versions with improved animations, richer multipliers and a better than ever Bonus Buy feature, which is sure to be a huge hit at new slot sites in the UK.
Key Features:
✔ Bonus Buy – 100x Bet: Access free spins instantly with fishing collect symbols
✔ Reel Repeat Feature: Replay your winning reel setup for second-chance catches
✔ Upgradable Fisherman: Collect fishers to unlock bigger multipliers
✔ Bonus Round Scaling: Extra spins and upgrades every 4 fisherman symbols
Types of Bonus Buy Feature Options
1. Standard Bonus Buy (Buy Free Spins)
What it is:
This is the most common Bonus Buy option. You pay a set amount (usually 50x-100x your stake) to instantly trigger access to the main bonus round, typically a Free Spins feature.
Typical Cost: 100x your standard base bet.
Popular Examples:
- Gates of Olympus (Pragmatic Play) – 100x for Free Spins
- Sugar Rush (Pragmatic Play) – 100x for Free Spins
- Book of Dead (Play’n GO) – 100x to activate Free Spins
2. Super Bonus Buy / Enhanced Bonus Buy
What it is:
An upgraded version of the standard bonus round, often with enhanced features like extra wilds, multipliers, better symbols or increased volatility and higher chance of hitting the maximum win. These usually cost 150x to 500x the stake.
Typical Cost: 150x-500x
Popular Examples:
- Mental (NoLimit City) – Enhanced Autopsy Spins: 200x
- Money Train 3 (Relax Gaming) – Persistent Bonus Buy: 500x
- Chaos Crew II (Hacksaw Gaming) – Epic Bonus: Higher volatility, bigger max win chance
Mystery Bonus Buy / Random Feature Buy
What it is:
You pay a fixed price for a random bonus, which could be a basic, enhanced or super feature. It’s a gamble within a gamble and hugely popular among players.
Typical Cost: 100x–200x (randomised bonus level)
Popular Examples:
- Wanted Dead or a Wild (Hacksaw Gaming) – Random Duel or Dead Man’s Hand bonus
- Outlaws Inc (Hacksaw Gaming) – Mystery Buy option
- Fruit Party 2 (Pragmatic Play) – Random feature package
3. Multiple Bonus Buy Tiers/Options
What it is:
Some slots offer multiple buy options at different price points, each representing a unique bonus type or volatility level, making the option to buy the bonus feature available for all types of players.
Typical Cost: 50x, 100x, 150x, 200x, 500x – Varied
Popular Examples:
- Money Train 3 (Relax Gaming) – 4 unique bonus buy levels
- Hand of Anubis (Hacksaw Gaming) – Multiple feature entries
- Mental (NoLimit City) – 3 bonus types at different cost tiers
xBet Feature 💥
What it is:
Instead of buying the bonus outright, players can increase their base game stake (usually by 50%–100%) to boost their odds of triggering the feature naturally. This option is normally found at the side of the reels.
Example:
- Big Bamboo (Push Gaming) – xBet boosts bonus hit chance
- Gates of Olympus 1000 (Pragmatic) – xBet mode increases chance of bonus
Unique Bonus Buys 👑
These are custom Bonus Buy features that don’t fall into standard categories and are tailored to the game’s unique mechanics:
1) Persistent Symbol Bonus Buy
Buy into a bonus round where a sticky or persistent symbol stays active throughout, often with increasing multipliers or expansions.
- RIP City (Hacksaw Gaming) – Persistent wild cat on reels
- Fire In The Hole 2 (NoLimit City) – Persistent explosives
2) Multi-Phase Bonus Buy
The bonus includes multiple phases, like collecting symbols to unlock higher tiers within the bonus itself.
- Chaos Crew II – Build up re-spins and unlock stages
- Toshi Video Club – Progressive levels with sticky features
3) Split Reels / Multi-Bonus Grid
Buy into a bonus where two or more separate grids or bonuses are active simultaneously.
- Dork Unit (Hacksaw Gaming) – Multiple clown features
- Serial (NoLimit City) – Dual-feature killers bonus
Summary of Bonus Buy Types:
| Bonus Buy Type | Cost Range | Description | Best For |
| Standard Bonus Buy | 100x | Access to regular bonus round | Balanced players |
| Super Bonus Buy | 200x–500x | Enhanced, more volatile feature | High-rollers |
| Mystery Buy | 100x–200x | Random feature tier with variable value | Risk lovers |
| Multi-Tier Menu Buy | 50x–500x | Choose from different feature types | Varied |
| xBet Mode | +50%–100% stake | Boost bonus trigger chance without direct buy | Patient Players |
| Unique Bonus Buy | Varies | Custom game mechanics (persistent wilds, dual grids) | Fans of creative gameplay |
Play Demo Slots Where You Can Buy Bonus
Here are the current three most popular free demo slots:
Why Are Bonus Buy Slots Restricted at UK Sites?
In 2021, the UK Gambling Commission (UKGC) banned the Bonus Buy feature across all UK-licensed online casinos as part of new regulations aimed at promoting safer gambling. The reason? The feature was considered high-risk, encouraging rapid losses and appealing to vulnerable players. There was no solid evidence or research to support this and the decision was heavily criticised by the general public in the UK.
As a result, players in the UK can no longer access Bonus Buy slots at casinos regulated by the UKGC. If you’re on a UK-licensed site, you won’t see a “Buy Bonus” button, no matter what slot you’re playing.
How Can UK Players Still Play Bonus Buy Slots?
The solution: Non UK Licensed Casinos.
A Non UK Casino or Non UK Slots Site is an online gambling site that operates outside of the United Kingdom and is not licensed by the UK Gambling Commission (Non UKGC Casino). Instead, these casinos are typically licensed by reputable international authorities such as:
- Curacao eGaming
- Malta Gaming Authority (MGA)
- Gibraltar Gaming Commission
- Costa Rica Gambling Board
Despite not being regulated by the UKGC, many Non UK Casinos are 100% legitimate and safe, provided they hold proper international licences and pass security checks (such as SSL encryption and fair game audits). Read expert reviews and player feedback when selecting a non UK licensed casino.
FAQ’s About UK Bonus Buy Slots
1. What Is a Slot Where You Can Bonus Buy UK?
A bonus buy slot is a slot game which has an option to buy directly into the bonus rounds or free spins at any given point for a set fee. These fees vary depending on the volatility and maximum win amount.
2. How Much Does It Cost to Buy the Bonus Feature?
The price to activate a Bonus Buy feature varies by game but usually ranges from 20x to 500x your base stake, but the most common is 50x-100x. Some games offer varied pricing tiers. For example:
- 50x – 75x Bet: Entry-level bonus rounds with low to medium volatility (e.g., Chaos Crew 2)
- 100x Bet: Standard bonus round access, most common cost (e.g. Gates of Olympus, Sugar Rush)
- 150x – 500x Bet: High-volatility “Super Bonuses” with enhanced rewards (e.g. Dead or a Wild, Money Train 3)
3. What Types of Bonus Buy Options Are Available?
There are multiple types of options in slots where you can buy bonus UK, they include:
- Standard Bonus Buy: Pay to access the regular free spins (usually 100x).
- Super Bonus Buy: Enhanced bonus with stacked features or higher volatility (150x+).
- Mystery Buy: Randomly chosen bonus tier, offering surprise potential.
- Multiple Tier Bonus Menu: Choose from various bonus types and volatility levels.
- xBet Feature: Increase base bet to improve your chances of triggering a bonus naturally.
- Unique Bonus Mechanics: Custom features such as persistent symbols or multi-grid formats (seen in RIP City or Mental 2).
4. What Casinos Offer The Most Slots Where You Can Bonus Buy?
These five brands are considered to have the biggest and best buy feature slots libraries:
- Dogspins Casino
- Wino Casino
- Donbet Casino
- Extreme Spins
- Mad Casino
5. Where Can I Play Bonus Buy Slots as a UK Player?
To access Bonus Buy Slots, UK players must visit Non UK Licensed Casinos, these are offshore casinos that operate outside the jurisdiction of the UKGC. These sites are typically licensed by Curacao, Malta, Gibraltar or other reputable international regulators. They legally allow UK players to join and enjoy unrestricted access to Bonus Buy features, high-RTP slots, and other non UK slots.
6. What Are The Perks To Buying Free Spins?
Buying free spins—also known as activating a Bonus Buy feature—offers several major advantages that appeal to both casual and high-stakes slot players. Here’s why so many players choose to skip the base game and go straight to the action:
A) Instant Access to Bonus Rounds
No need to wait for scatters or bonus symbols to land naturally in the base game. With Bonus Buy slots, you can trigger the most exciting part of the game immediately for a set fee.
B) Higher Win Potential
Bonus rounds are typically where the biggest payouts happen. Whether it’s stacked wilds, multipliers or sticky symbols, buying free spins puts you straight into the part of the game with the highest volatility and chance to land the max win (sometimes up to 600,000x)!!.
C) Increased RTP (Return to Player)
Many slots increase the RTP when you buy the bonus. For example:
- Base Game RTP: Usually around 94%-97%
- Bonus Buy RTP: Often increased to 97%-99.60%
This means you’re statistically getting more value over time by buying the bonus feature compared to playing through standard spins.
D. Control Over Gameplay
Some slots offer multiple bonus buy tiers, letting you choose between:
- Basic free spins (lower cost, lower risk)
- Enhanced features with wilds/multipliers (higher cost, bigger potential) This gives you full control over the level of risk and excitement you’re comfortable with.
