If you’re a slot enthusiast in the UK, you know the frustration. You’re watching your favourite streamer hit a massive “Super Bonus” on a game like Money Train, and you think, “I want to try that!” But then you load up the game at your usual UK casino, and the “Buy Feature” button is nowhere to be found.
Since the UKGC’s 2019 crackdown, British players have been locked out of one of the most exciting innovations in gaming history. But there’s a workaround. By playing at reputable international casinos—often referred to as slots not on GamStop—you can regain access to these high-octane features.
In this guide, we’re breaking down the absolute best bonus buy slots available to UK players right now. We’ve tested these for hit frequency, payout potential, and pure entertainment value.
Why We Love Bonus Buys (And You Should Too)
The “grind” isn’t for everyone. Sometimes you only have 15 minutes to play, and you don’t want to spend 10 of them spinning the reels for no reward. Bonus buys give you:
- Instant Gratification: Jump straight to the part of the game where the big money lives.
- Higher RTP: Many slots actually pay back more on average during the bonus buy than in the base game.
- Strategic Control: You decide when to take the risk, rather than leaving it entirely to luck.
The Top 10 Countdown
1. Money Train 4 (Relax Gaming)
The legend continues. Relax Gaming’s Money Train series is the gold standard for feature buys. In the fourth installment, the “Persistent” symbols are more powerful than ever.
- Buy Cost: 100x to 500x
- Max Win: 150,000x
- The Vibe: Gritty, steampunk, and potentially life-changing.
2. Gates of Olympus (Pragmatic Play)
Zeus is waiting at the top of the mountain, and he’s feeling generous. The bonus buy here gives you 15 free spins where multipliers don’t reset—they just keep building.
- Buy Cost: 100x
- Max Win: 5,000x
- The Vibe: Epic mythological action with “tumble” wins.
3. Wanted Dead or a Wild (Hacksaw Gaming)
Hacksaw Gaming has mastered the art of the “Duel.” This Western-themed slot offers three different bonus buys, ranging from the high-frequency The Great Train Robbery to the insane volatility of Dead Man’s Hand.
- Buy Cost: 80x, 200x, or 400x
- Max Win: 12,500x
- The Vibe: Dark, atmospheric, and incredibly tense.
4. San Quentin xWays (Nolimit City)
Nolimit City is famous for pushing boundaries, and San Quentin is their masterpiece. The “Lockdown Spins” can be purchased for up to 2,000x your stake, which is steep, but the 150,000x max win makes it the ultimate “high roller” choice.
- Buy Cost: 100x to 2,000x
- Max Win: 150,000x
- The Vibe: Edgy, prison-themed, and maximum volatility.
5. Sweet Bonanza (Pragmatic Play)
Sometimes you just want something bright and fun. Sweet Bonanza is a candy-filled wonderland where the bonus buy drops massive multiplier bombs (up to 100x) onto the reels.
- Buy Cost: 100x
- Max Win: 21,100x
- The Vibe: Colourful, fast-paced, and very “moreish.”
6. Razor Returns (Push Gaming)
The sharks are back, and they’ve brought “Golden Sharks” with them. The bonus buy in Razor Returns allows you to jump straight into the “Razor Reveal” feature or the free spins with a starting multiplier.
- Buy Cost: 100x to 500x
- Max Win: 100,000x
- The Vibe: Intense underwater tension with a banging soundtrack.
7. Big Bass Amazon Xtreme (Reel Kingdom)
The Big Bass series is a UK favourite. In this version, the bonus buy isn’t just about spins; it’s a “pick-and-click” game where you can add extra fishermen, more fish, or remove the lowest multipliers before the spins even start.
- Buy Cost: 100x
- Max Win: 10,000x
- The Vibe: Relaxing fishing trip that can turn into a feeding frenzy.
8. Mental (Nolimit City)
Not for the faint of heart. Mental is set in a creepy asylum and features some of the most complex mechanics in the industry. Buying the “Mental Spins” is the only way to truly see what this game is capable of.
- Buy Cost: 80x to 1,000x
- Max Win: 66,666x
- The Vibe: Horror-themed, chaotic, and brilliant.
9. Sugar Rush 1000 (Pragmatic Play)
A “souped-up” version of the original. The “1000” series from Pragmatic Play increases the maximum multipliers to a staggering 1,024x. The bonus buy here is a sugar rush like no other.
- Buy Cost: 100x or 500x (for Super Bonus)
- Max Win: 25,000x
- The Vibe: Sweet, sugary, and high-speed.
10. Chaos Crew 2 (Hacksaw Gaming)
Crumpy and Sketchy are back in this graffiti-inspired sequel. The “Best of Bonus” buy is a unique feature where the game plays three bonuses in a row and gives you the win from the best one!
- Buy Cost: 100x to 500x
- Max Win: 20,000x
- The Vibe: Punk rock, neon, and unpredictable.
How to Play Safely
When playing at casinos not on GamStop, it’s vital to stay in control. Here are our top tips:
- Set a “Buy Limit”: Decide how many bonuses you’ll buy in a session and stick to it.
- Check the License: Only play at sites with a valid Curacao or MGA license.
- Use Trusted Payments: Look for sites that offer secure e-wallets or crypto options.
Ready to skip the grind? Check out our top-rated casinos not on GamStop and start your feature buy journey today!
Remember: Bonus buys are high-risk. Only gamble what you can afford to lose. Visit BeGambleAware.org for support.