Best Casinos with Bonus Buy Slots Not on GamStop
UK players who want to use the bonus buy feature on their favourite slots face a frustrating reality at home: every casino licensed by the UK Gambling Commission (UKGC) has the feature stripped out. Since October 2019, the UKGC has required all licensed operators to disable bonus buy under its Remote Gambling and Software Technical Standards, making it impossible to find a legal buy-feature button at any GamStop-registered site.
The solution that a growing number of UK players have discovered is offshore casinos — platforms licensed outside the UK, typically in Curacao, that are not part of the GamStop self-exclusion scheme and face no obligation to comply with UKGC content rules. These casinos carry the full versions of slots from world-leading providers like Pragmatic Play, Relax Gaming, Hacksaw Gaming, Nolimit City, and Big Time Gaming — complete with bonus buy enabled.
This guide covers the five best non-UK casinos for bonus buy slots in 2026, the top games to play, and everything you need to know before you start. For our complete library of reviewed offshore platforms, visit our full casino reviews.
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Why You Can’t Use Bonus Buy on UK Sites
The UK Gambling Commission introduced its ban on bonus buy in October 2019, acting under clause 14a of the Remote Gambling and Software Technical Standards (RTS). This clause prohibits gambling products from encouraging customers to increase their stake beyond what they have already chosen to wager. The Commission determined that bonus buy — which typically asks players to pay 50x to 500x their current stake in order to immediately trigger a bonus round — is a clear breach of this standard.
The ban covers every operator holding a UKGC licence, which in practice means every casino registered with GamStop. When you load Gates of Olympus, Sweet Bonanza, or Money Train 4 at a UK site, you are playing the UK-market version of that game: the buy feature button is disabled in the software before it is ever presented to you.
On top of the bonus buy ban, the UKGC introduced online slot stake limits in 2025. From 9 April 2025, a maximum of £5 per spin applies to all adults on UKGC-licensed sites. From 21 May 2025, players aged 18 to 24 face a lower cap of £2 per spin. Neither of these restrictions applies at offshore casinos outside the GamStop network.
Top 5 Non-UK Casinos with Bonus Buy Slots
BassWin Casino — Best Overall for Bonus Buy Slots
BassWin is licensed by the Curacao eGaming Authority and has built one of the most comprehensive slot libraries among offshore platforms, with over 5,000 games from 100+ software providers. The casino carries the full bonus buy catalogues from Pragmatic Play (including Gates of Olympus and Sweet Bonanza), Relax Gaming (including Money Train 4), Hacksaw Gaming, Nolimit City, and Big Time Gaming — all with the buy feature active and unrestricted. The welcome package includes a large percentage match on your first deposit alongside free spins. Payment methods cover major debit cards, e-wallets, and a strong selection of cryptocurrencies. BassWin’s combination of game depth, licence credibility, and straightforward account setup makes it the most rounded starting point for players new to bonus buy at offshore casinos.
MyStake Casino — Biggest Game Selection
MyStake operates one of the largest casino game libraries available to UK players outside the GamStop network, with a catalogue that runs well beyond 7,000 titles. Crucially for bonus buy enthusiasts, MyStake features a dedicated “Bonus Buy” lobby filter — meaning you can navigate directly to every feature-buy enabled slot without needing to search title by title. The casino is licensed under Curacao jurisdiction and covers the full spectrum of bonus buy titles from all major providers, from the entry-level buy options in Sweet Bonanza to the extreme multi-thousand-x buy options in San Quentin xWays by Nolimit City. The welcome bonus is competitive, and the platform accepts a broad range of payment methods including cryptocurrency. MyStake suits players who want the widest possible selection and the ability to navigate it efficiently.
Rolletto Casino — Best Welcome Bonus
Rolletto launched in May 2021 under a Curacao licence and has positioned itself as a market leader on welcome bonus value. The multi-stage welcome package across first deposits can reach up to £1,500 in total, which is among the more generous offers available at offshore casinos. The game library covers over 6,000 slots including the complete bonus buy offerings from Hacksaw Gaming, Pragmatic Play, and Relax Gaming. Rolletto accepts deposits from £10, keeps its minimum deposit threshold low and accessible, and processes withdrawals within a few business days for fully verified accounts. Weekly promotions and a loyalty scheme provide ongoing value beyond the welcome package. Players who are primarily motivated by maximising their initial deposit value will find Rolletto’s offer structure particularly appealing.
Donbet Casino — Best for Crypto Players
Donbet was established in December 2023 and has grown quickly on the strength of its cryptocurrency offering. Alongside the standard welcome bonus of 150% up to £750 with free spins, the casino offers a dedicated crypto welcome deal that reaches 170% plus 100 free spins for players depositing in Bitcoin, Ethereum, Litecoin, Ripple, and several other supported coins. Donbet carries games from over 90 software providers and explicitly categorises “Bonus Buy” as a navigable lobby section, making it easy to locate relevant titles immediately. The wagering requirement of 30x (on deposit plus bonus) is standard for the offshore market. For UK players who prefer to transact in cryptocurrency — whether for speed, privacy, or avoiding bank friction — Donbet is a strong match, particularly given the enhanced crypto bonus and the breadth of the bonus buy game selection.
Velobet Casino — Best for Fast Withdrawals
Velobet’s standout feature is withdrawal speed. The casino consistently processes verified player withdrawals within hours rather than days, which matters when the volatility of bonus buy play means you might be sitting on a large win that you want to access quickly. The welcome offer covers up to 500 in deposit match value across first deposits, with free spins included, and the casino hosts a full roster of bonus buy titles from Pragmatic Play and Relax Gaming. Crypto payments are supported alongside standard methods, and certain cryptocurrency promotions at Velobet carry a 0x wagering requirement — genuinely one of the more player-friendly bonus structures available offshore. For players who have experienced the frustration of slow withdrawals at other platforms, Velobet’s processing times make it a consistently recommended choice.
Best Bonus Buy Slots to Play in 2026
Not every slot available at offshore casinos is worth spending your bonus buy budget on. The following titles represent the best combination of verified RTP, bonus mechanics, and max win potential from providers with established track records.
The major providers to prioritise are Pragmatic Play, Relax Gaming, Hacksaw Gaming, Nolimit City, and Big Time Gaming (BTG). Each has produced bonus buy titles that have been independently certified by RNG testing labs, ensuring the advertised RTP and game mechanics are accurate.
| Slot | Provider | Bonus Buy Cost | RTP | Max Win |
|---|---|---|---|---|
| Gates of Olympus | Pragmatic Play | 100x | 96.5% | 5,000x |
| Money Train 4 | Relax Gaming | 20x–500x | 96.1–97% | 150,000x |
| Wanted Dead or a Wild | Hacksaw Gaming | 80x–400x | 96.38% | 12,500x |
| San Quentin xWays | Nolimit City | 100x–2000x | 96.03% | 150,000x |
| White Rabbit Megaways | Big Time Gaming | 100x | 97.72% | 13,000x |
| The Hand of Anubis | Hacksaw Gaming | 129x–200x | 96.24% | 10,000x |
| Sweet Bonanza | Pragmatic Play | 100x | 96.48% | 21,100x |
White Rabbit Megaways by Big Time Gaming stands out in the RTP column at 97.72% — notably above the industry norm — which makes its 100x bonus buy one of the stronger value propositions on paper. At the opposite extreme, San Quentin xWays by Nolimit City has the highest buy tier at 2,000x stake and the joint-highest max win at 150,000x, making it the title of choice for high-bankroll, high-variance sessions.
How to Use the Bonus Buy Feature Step by Step
If you are new to bonus buy slots, the process is more straightforward than it might appear. Here is a clear step-by-step guide from account creation to feature purchase.
- Sign up at an offshore casino. Choose one of the five casinos reviewed above. Registration typically takes two to five minutes and requires basic personal details. You will need to complete identity verification (KYC) before withdrawing, so providing accurate information at sign-up will save time later.
- Make a deposit. Fund your account using your preferred payment method — debit card, e-wallet, or cryptocurrency. Be aware of any minimum deposit requirements and ensure your balance is sufficient not just for the bonus buy itself, but for a session. If you are buying a bonus at 100x on a £0.50 stake, that is £50 per purchase — make sure your balance accounts for the possibility of multiple buys.
- Navigate to the bonus buy slot. Use the casino’s game lobby or search function. Casinos such as Donbet and MyStake have dedicated Bonus Buy categories. At other casinos, search by the game title directly. Open the slot in real-money mode, not demo mode.
- Set your stake. Before hitting the buy feature button, set your stake per spin. The cost of the bonus buy is calculated as a multiple of this stake. A lower stake reduces the absolute cost of each buy — at £0.20 per spin with a 100x buy, the feature costs £20. At £1 per spin it costs £100.
- Locate and press the “Buy Feature” or “Buy Bonus” button. This is typically found in the game’s menu, settings icon, or displayed directly on the main game screen. Pressing it will show you the available buy options, their costs in your currency, and usually a brief description of what each tier provides.
- Confirm your purchase. Most games require a final confirmation tap or click before processing the feature buy. Once confirmed, the deduction is immediate and the bonus round begins. From this point the experience is identical to organically triggering the feature — the RNG determines the outcome.
Take your time with step four in particular. Setting the right stake before buying — rather than rushing into a high-stake buy — is the single most important habit to develop when using bonus buy features regularly.
Bonus Buy FAQs
Which casinos offer bonus buy slots outside GamStop?
BassWin, MyStake, Rolletto, Donbet, and Velobet are among the most established offshore casinos offering bonus buy slots to UK players. These casinos are licensed by Curacao or similar offshore authorities, operate independently of the GamStop self-exclusion scheme, and carry the full versions of slots from Pragmatic Play, Relax Gaming, Hacksaw Gaming, Nolimit City, and Big Time Gaming — all with the bonus buy feature enabled.
Is it legal for UK players to use bonus buy at offshore casinos?
The bonus buy feature itself is not illegal for UK players to use. The UK Gambling Commission’s October 2019 ban applies to operators holding a UKGC licence, not to players themselves. UK players can legally access offshore casinos that offer bonus buy slots, but those sites are not regulated by the UKGC, which means dispute resolution, player fund protection, and responsible gambling standards may differ from UKGC-licensed sites.
What is the best bonus buy slot at non-GamStop casinos?
Gates of Olympus by Pragmatic Play and Money Train 4 by Relax Gaming are consistently the most popular bonus buy titles at non-GamStop casinos. Gates of Olympus offers a straightforward 100x stake entry to a free spins round featuring stacking multipliers up to 500x, while Money Train 4 provides tiered bonus buy options from 100x to 500x and a potential max win of 150,000x.
Can I use a welcome bonus at a non-GamStop casino on bonus buy slots?
Most non-GamStop casinos restrict the use of active bonus funds on bonus buy and feature buy options. Check the specific terms and conditions of any welcome bonus before attempting to use it on buy feature games, as using bonus funds on restricted game types can result in your bonus and associated winnings being voided.
Do all non-GamStop casinos have a bonus buy category?
Not all offshore casinos explicitly label a ‘Bonus Buy’ game category, but most that carry Pragmatic Play, Relax Gaming, Hacksaw Gaming, Nolimit City, or Big Time Gaming titles will have the feature enabled within individual games. Casinos such as Donbet and MyStake do offer dedicated bonus buy filtering within their game lobbies, which makes it easier to find the relevant titles quickly.
Responsible Gambling
Bonus buy is a high-cost, high-variance feature. The upfront price of each feature purchase — often equal to 100 or more standard spins’ worth of stake — means that money can move quickly in both directions. It is important to set a strict session budget before you start and to stop once that budget is reached, regardless of the outcome.
If gambling is affecting your wellbeing, finances, or relationships, confidential and free support is available:
- BeGambleAware — www.begambleaware.org — information, advice, and 24/7 live chat support.
- GamCare — www.gamcare.org.uk — call the National Gambling Helpline on 0808 802 0133, available 24 hours a day, every day of the year.
- GamStop — www.gamstop.co.uk — register for free self-exclusion across all UKGC-licensed casinos.
The casinos featured on this page are not registered with GamStop. If you have a GamStop self-exclusion in place, it will not prevent access to these sites. If you feel you need additional protection, please contact GamCare or BeGambleAware before registering at any offshore casino.