Bonus Buy slots UK are a popular type of online slot game that give players the option to skip the base game and immediately trigger the bonus round by paying a fixed price. These bonus features are the most anticipated part of the game and are usually where the biggest wins occur; they come with additional features such as wilds, multipliers, re-spins and much more. In this guide, we’ll cover everything you need to know about Bonus Buy slots, including how they work, which top rated casinos offer them to UK players and which are the best new releases.
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Understanding Bonus Buy Slots
Bonus Buy slots which are also referred to as “Buy Feature” or “Buy Free Spins” slots are a thrilling subcategory of online slot games where players can pay a set amount to trigger the bonus round instantly, rather than waiting for it to activate organically via the base game (which doesn’t happen that often). This mechanic appeals especially to players who enjoy high volatility action at the click of a button.
These games are hugely popular in the UK and globally, often ranking alongside Megaways slots as fan favourites. What sets Bonus Buy slots apart is that each title typically features its own unique variation of the bonus buy mechanic. Whether it’s enhanced free spins, multipliers, re-spins or bonus rounds packed with wild features, all of which can lead to huge wins and normally the games maximum win can only be achieved within the ‘feature play’.
Where Did Bonus Buy Slots Start?
Slots where you can bonus buy first gained traction around 2017–2018, particularly within European online casinos. The idea was born out of the growing demand for instant access to bonus rounds, especially among slots fans which prefer instant high risk taking with the potential for high rewards. They gained popularity very quickly, with streamers videoing huge bonus buys and massive payouts from these game features.
First Developers to Use Bonus Buy Mechanics
The pioneers of slots where you can buy the bonus feature were:
- Big Time Gaming (BTG) – While better known for creating Megaways, BTG’s innovation in slot mechanics laid the groundwork for more interactive features like Bonus Buys. Though they weren’t the first to introduce Bonus Buy specifically, they influenced its popularity.
- Push Gaming – They were one of the first developers to launch bonus buy slots UK.
- NoLimit City – Known for pushing boundaries in slot design and always trying to bring originality to their games, they quickly adopted and evolved the Bonus Buy slot mechanics, integrating it with multiple different buy feature options which have various purchase prices and volatilities.
- Pragmatic Play – Helped bring Bonus Buy slots UK to the mainstream in England by introducing it in many of their already popular titles and offering various pricing options to cater for smaller players as well as high stakes players.
First Buy Bonus Slot Title Releases
Some of the first and most iconic Bonus Buy slots in the UK include:
White Rabbit Megaways 🐰 (Big Time Gaming, 2017)
- Mechanic: Feature Drop
- One of the very first slots where you can bonus buy. While not branded as a “Bonus Buy” in the modern sense, the Feature Drop allowed players to reduce the cost of buying the bonus round by collecting coins in the base game.
Extra Chilli Megaways 💎 (Big Time Gaming, 2018)
- Included an early style of Bonus Buy where players could pay to access free spins (buy free spins slot) and then gamble them for even more spins. Risky, exciting and popular.
Jammin’ Jars 🍓 (Push Gaming, 2018)
- Paved the way for future Push Gaming titles like Jammin’ Jars 2, where Bonus Buy was introduced more directly.
Money Train💰 (original) (Relax Gaming, 2019)
- Although the first Money Train didn’t launch with a buy feature option, it laid the groundwork. Its sequel Money Train 2 introduced the bonus buy slot feature more prominently and became a huge hit in the UK.
Lil’ Devil 🧟 (Big Time Gaming, 2019)
- Players could “build toward” the bonus by collecting hearts, but Heartstopper Mode allowed players to effectively “buy into” an enhanced bonus round, acting as a precursor to Bonus Buy in BTG’s game portfolio.
Tombstone ⚔️ (NoLimit City, 2019)
- One of the first NoLimit City slots to include Bonus Buy options, setting the groundwork for their later releases like Deadwood and San Quentin, which added further innovative features.
Deadwood 🌵 (NoLimit City, 2020)
- Mechanic: Multiple Bonus Buys options including (Hunter, Gunslinger and Shoot Out)
- Brought in a multi-tier Bonus Buy system, offering players the choice between different levels of price, risk and reward.
San Quentin xWays 🔫 (NoLimit City, 2021)
- Known for premium-level buys and ultra-high volatility, San Quentin introduced variable Bonus Buy pricing tied to enhanced features within the bonus rounds. Players could buy 1, 2 or 3 Jumping Wilds to increase their win potential dramatically.
How Much Do Bonus Buy Slots UK 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 options which vary with volatility and bonus features.
Here’s a breakdown of typical bonus buy costs and what you can expect at each level:
20x – 75x Your Bet 💥
This price point option 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 examples include:
- 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 volatility around medium/average or in some cases medium/high. This is where you’ll find decent win potential mixed with a fair risk level, making it the most popular option when playing slots where you can bonus buy.
Popular examples at bonus buy casinos include:
- 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 UK 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, additional re-spins or added reels, all of which can lead to the games maximum win potential.
Popular examples at bonus buy casinos include:
- 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 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, a great example is:
Money Train 3 (Relax Gaming) – Offers a variety of bonus buys:
- 20x (1 Spin Feature) – Guarantees the bonus game is activated 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 activated 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 activated 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 activated with 1 persistent symbol. Every new symbol that lands in the bonus game will reset the spin count to 3.
Top 5 Most Popular Bonus Buy Slots Among UK Players
1. Money Train 2 (Relax Gaming)
- Game Type: Western themed bonus buy slot
- Bonus Buy Price: 100x
- Bonus Buy Rating: 9/10
- Max Win: 50,000x
- Volatility: Extremely High (10/10)
- Key Features:
- Persistent payer/collector symbols
- Expanding grid in the bonus round
- Premium graphics and dynamic win potential
Slot Review Ratings:
⭐ 9.1/10 – Quickhits Slots
⭐ 9.1/10 – Casino Guru
⭐ 9.3/10 – Bigwinboard
⭐ 8.8/10 – AskGamblers
⭐ 9.0/10 – SlotCatalog
2. Wanted Dead or a Wild (Hacksaw Gaming)
- Game Type: Dark Wild West slot with multiple buy bonus slot modes
- Bonus Buy Price: 200x-400x
- Bonus Buy Rating: 8/10
- Max Win: 12,500x
- Volatility: High (8/10)
- Key Features:
- Three bonus rounds to choose from
- VS symbols deliver massive multipliers
- Extremely volatile but hugely rewarding
Slot Review Ratings:
- ⭐ 9.0/10 – Quickhits Slots
- ⭐ 9.2/10 – Bigwinboard
- ⭐ 9.0/10 – AskGamblers
- ⭐ 9.1/10 – SlotCatalog
- ⭐ 8.7/10 – Casino Guru
3. Sugar Rush (Pragmatic Play)
- Game Type: Sweet themed cluster pays
- Bonus Buy Price: 100x
- Bonus Buy Rating: 8/10
- Max Win: 5,000x
- Volatility: Extremely High (10/10)
- Key Features:
- Multiplier zones grow with every cluster win
- Cascading reels for chain reactions
- Simple yet addictive gameplay
Slot Review Ratings:
- ⭐ 8.9/10 – Quickhits Slots
- ⭐ 8.9/10 – Bigwinboard
- ⭐ 8.4/10 – AskGamblers
- ⭐ 8.8/10 – SlotCatalog
- ⭐ 8.3/10 – Casino Guru
4. Gates of Olympus (Pragmatic Play)
- Game Type: Scatter pays with Greek God theme
- Bonus Buy Price: 100x
- Bonus Buy Rating: 8/10
- Max Win: 5,000x
- Volatility: Extremely High (10/10)
- Key Features:
- Multiplier bombs up to 500x
- Applies to any cluster win
- Buy feature guarantees entry into the free spins bonus
Slot Review Ratings:
- ⭐ 8.5/10 – Quickhits Slots
- ⭐ 8.5/10 – Bigwinboard
- ⭐ 8.0/10 – AskGamblers
- ⭐ 8.4/10 – SlotCatalog
- ⭐ 8.2/10 – Casino Guru
5. Chaos Crew – Hacksaw Gaming
- Game Type: Urban vibrant neon themed multiplier slot
- Bonus Buy Price: 129x
- Bonus Buy Rating: 9/10
- Max Win: 10,000x
- Volatility: Extremely High (10/10)
- Key Features:
- Sticky multiplier reel bonuses
- Reset spins on new symbol
- Creep and Cranky bring mayhem and huge multipliers
Slot Review Ratings:
- ⭐ 8.9/10 – Quickhits Slots
- ⭐ 9.0/10 – Bigwinboard
- ⭐ 8.7/10 – AskGamblers
- ⭐ 8.9/10 – SlotCatalog
- ⭐ 8.5/10 – Casino Guru
Most Anticipated Bonus Buy Slots of 2025
1. Chaos Cartel (Hacksaw Gaming)
📅 Expected Release: August 2025
🎰 Type: Urban Crime Themed Bonus Buy Slot UK
⚡ Volatility: Extremely High (10/10)
💰 Max Win: 15,000x
👌 RTP: 96.27% To 98.35%
Overview:
Following the massive success of Chaos Crew 2, Chaos Cartel comes with incredible graphics which take the underground aesthetic to new extremes. Featuring gang symbols, mystery bombs and multiple buy feature slot options with various volatility and price range, this slot is set to be a Hacksaw classic!!.
Bonus Buy Feature:
✔ Buy into one of three chaos bonus levels: Standard Bonus (100x), Chaos Spins (200x) or Ultra Cartel Mode (400x)
✔ Unlocks expanding multiplier reels and chained respins
2. The Collector’s Vault (Relax Gaming)
📅 Expected Release: October 2025
🎰 Type: Mystery Adventure Buy Free Spins Slot
⚡ Volatility: Medium/High (7/10)
💰 Max Win: 10,000x
👌 RTP: 96.60% to 97.99%
Overview:
Step into a hidden museum filled with magical relics and unlock the power of artefacts in The Collector’s Vault. Each spin can trigger relic enhancements and the Bonus Buy drops you directly into the “Curator’s Chamber” free spins round which can lead to huge wins.
Bonus Buy Feature:
✔ Instant access to the Relic Free Spins (120x your stake)
✔ Symbol upgrades and reel expansions during bonus play
3. Rise of Osiris: Bonus Edition (Play’n GO)
📅 Expected Release: September 2025
🎰 Type: Egyptian Mythology Themed Buy Feature Slot
⚡ Volatility: High (8/10)
💰 Max Win: 12,000x
👌 RTP: 96.40% To 98.55%
Overview:
A bonus buy version of one of Play’n GO’s most popular mythology slots. Rise of Osiris: Bonus Edition will feature enriched free spins with sticky multipliers and expanding wilds. Expect stunning visuals, suspenseful audio and a rewarding pyramid themed bonus system which can lead to the games maximum win of 12,000x!!.
Bonus Buy Feature:
✔ Access the Tomb of Trials for 100x
✔ Choose volatility level: Classic, Advanced or Supreme Trials
4. Mad Mechanic Megaways (Blueprint Gaming)
📅 Expected Release: November 2025
🎰 Type: Steampunk Megaways Bonus Buy Slot UK
⚡ Volatility: Extremely High (10/10)
💰 Max Win: 50,000x
👌 RTP: 96.55% To 98.85%
Overview:
Blueprint pulls steampunk inspiration with Mad Mechanic Megaways, featuring 117,649 ways to win, wild machines and overclocked bonus rounds. A fan favourite already teased by the developer, players are excited for its fusion of innovation and extreme life changing payout potential of up to 50,000x…. So if your playing with £2 spins you could win a huge £100,000!!!.
Bonus Buy Feature:
✔ Standard Bonus Buy: 100x – Random modifiers + Free Spins
✔ Super Bonus Buy: 300x – Starts with x5 multiplier and guaranteed wild reels
5. Neon Samurai X (Nolimit City)
📅 Expected Release: December 2025
🎰 Type: Cyberpunk Buy Feature Slot
⚡ Volatility: Extremely Highl (10/10)
💰 Max Win: 25,000x
👌 RTP: 96.08% To 98.45%
Overview:
A dystopian Tokyo backdrop meets cutting edge slot mechanics in Neon Samurai X. Expect everything from walking multipliers to multi level bonus games. Nolimit City’s signature edgy style returns with a vengeance and the buy feature lets players choose between “Duel,” “Boss Fight,” or “Showdown” which all come with different volatility, jackpots, features, and pricing making it appealing to all types of players.
Bonus Buy Feature:
✔ Three Buy Modes – Duel (100x), Boss Fight (200x), or Showdown (500x)
✔ Includes persistent symbols, multiplier tracking, and killer soundtrack
How to Choose the Right Bonus Buy Slot UK: 5 Step Guide
1. Set Your Budget and Risk Level
Before anything, decide how much you’re willing to spend and whether you prefer low, medium or high volatility gameplay.
- Smaller bankrolls? Look for cheaper Bonus Buy options (20x–75x your bet)
- High risk/high reward? Choose volatile slots with expensive bonus entries (150x+)
2. Compare Bonus Buy Prices
Each slot where you can buy the bonus on will often have prices ranging from 50x to 200x your stake. Some slots offer multiple buy tiers/options.. compare them and choose what suits your style.
- Look for slots with flexible options, like ( Money Train 3/ Dead or a Wild)
- Check if the cost is worth the potential return or capped payout
3. Review RTP Percentages & Max Win Potential
Higher Return to Player (RTP) percentages and maximum win amounts make a big difference in long-term outcomes.
- Look for RTPs above 96% and ideally around 97-98%
- Check the max win… some slots offer up to 50,000x your stake or more!
4. Understand the Bonus Mechanics
Don’t just buy the bonus blindly….know what the feature offers.
- Are there multipliers, sticky wilds, expanding reels, respins?
- Does the feature offer real win potential or just added spins?
Watch demo mode or video reviews to see it in action before spending.
5. Choose a Trusted Casino
Make sure the site where you’re playing:
- Offers Bonus Buy slots
- Is licensed and supports responsible gambling
- Has good bonuses or cashback to boost your balance
Final Advice:
Test a few Bonus Buy slots in demo mode before buying in with real money. It’s the best way to understand volatility and features without risk.
FAQ’s Summary Of Bonus Buy Slots
1. What are Bonus Buy Slots UK?
Bonus Buy Slots UK are online slot games that let you pay a fixed price to instantly access the bonus round (feature), instead of waiting to trigger it naturally through landing scatters in the base game spins. This feature gives players a direct access option to the most exciting part of the game.
2. How much does it cost to buy a bonus?
The cost of buying the bonus round usually ranges from 50x to 200x your base bet, depending on the game. Some slots offer tiered options with varying volatility, while others may charge even more for premium features with higher payout potential.
3. Are Bonus Buy Slots legal in the UK?
Not at UK regulated sites. Bonus Buy features are restricted under UK Gambling Commission regulations. However, non-UK licensed casinos still offer them and accept UK players.
4. Can I try Bonus Buy slots for free?
Yes. Many Bonus Buy slots offer a demo mode where you can test the bonus feature without spending real money. This is a great way to see how the game works and whether it suits your playstyle before committing.
5. Are Bonus Buy slots worth it?
That depends on your budget, risk appetite and the specific slot. These features often come with high volatility, meaning bigger potential wins, but also bigger losses. It’s a preferred option for thrill seekers who are happy to take risks for potentially huge rewards.
