Terms and Conditions
These terms and conditions govern your use of theunderbelly.co.uk, the research and comparison site published under the name Non Gamstop Casinos. Reading the site means you accept them. They explain what we publish, how we earn money, what we can and cannot promise about the casinos we list, and where the responsibility sits between us, you and the operators themselves. Last reviewed on 26 September 2026.
We are a publisher, not a gambling operator. We do not accept deposits, hold player funds, take bets, issue bonuses or process withdrawals. Every account you open is a contract between you and that casino, governed by that casino's own terms and conditions — not ours.
Who may use this site
- You must be at least 18 years old. Gambling by under-18s is illegal in Great Britain and we do not knowingly provide information to minors.
- You are responsible for checking whether gambling with a particular operator is lawful where you live. Availability differs across Great Britain, Northern Ireland, the Channel Islands and the Isle of Man, and offshore casinos apply their own country restrictions.
- If you are currently registered with GAMSTOP, or with any operator's self-exclusion scheme, this site is not intended to help you circumvent that decision. Our responsible gambling guidance sets out blocking software, deposit and loss limits, and where to find support.
- You may not use the site to scrape, republish or resell our content, or to present our editorial ratings as your own.
Commercial disclosure: how we are paid
Non Gamstop Casinos earns commission through affiliate arrangements. If you follow a link from one of our listings, register with a casino and deposit, the operator may pay us a share of revenue or a fixed fee. You pay nothing extra, and the offer you see is the offer the operator publishes.
Commission does not buy position. Operators cannot purchase a higher rank, a higher editorial rating or the removal of a criticism. Where a commercial relationship exists we treat the listing exactly as we treat any other. You can read more about our method and our disclosure practice on the track record and transparency page.
What our rankings and ratings mean — and what they do not
The ratings shown beside each casino are editorial scores produced by our team from desk research: published licensing details, bonus terms, payment pages, withdrawal policies, game lobbies and publicly available operator information. They are not customer review averages, and they are not the result of us depositing or playing. We research and verify; we do not test.
A high score means a listing compared well on the criteria we assess. It is not a prediction of your experience, an assurance that a withdrawal will be paid, or a statement that a site is completely safe. No casino can be described that way, and we will not do so.
| Casino | Editorial rating | Headline welcome offer as advertised |
|---|---|---|
| Betmica | 10.0 | 570% up to £5,700 + 270 free spins |
| Kikibet | 9.9 | 350% up to £5,555 + 300 free spins |
| Betninja | 9.8 | £1,000 bonus + 100 free spins for new players |
| WinnerIsland | 9.8 | Up to €1,000 + 100 free spins |
| Zombillion | 9.7 | 250% up to £4,000 + 200 free spins |
| Smash Casino | 9.7 | 600% up to €10,000 slots package |
| Nightluck | 9.7 | 805% up to €6,400 + 280 free spins |
| CoinPoker | 9.7 | 150% up to $2,000 |
| Rivo | 9.5 | 1000% up to €10,000 + 25% cashback |
| Daytonaspin | 9.5 | 255% up to £4,500 + 255 free spins |
All offers are new-player promotions advertised by the operator, subject to minimum deposit, wagering requirements, maximum bonus bet caps, game contribution rules, expiry dates and in many cases a cap on what can be withdrawn from bonus winnings. Terms change without notice. Always read the operator's own bonus terms before depositing.
Three listings and the conditions attached
Betmica — headline percentage, heaviest conditions to read
Betmica sits at the top of our list because the advertised welcome offer, 570% up to £5,700 plus 270 free spins, is among the largest headline packages we have recorded across the sites we cover, and the site presents itself in pounds sterling for British readers. In terms-and-conditions terms, that is exactly the sort of offer that repays close reading: the larger the multiplier, the larger the wagering obligation that usually sits behind it, and the more likely a maximum cashout limit applies to bonus winnings. Limitation: a headline of this size is the least representative figure on the page, because it assumes a deposit at the top of the qualifying band that most readers will never make, and our score reflects research into published terms rather than any withdrawal experience.
Kikibet — sterling figures, but check the free-spin expiry
Kikibet is included because its 350% up to £5,555 and 300 free spins package is quoted in GBP, which spares UK readers the currency conversion that applies at several offshore sites. Spin packages of that size are normally released in daily tranches rather than all at once, and each tranche typically carries its own expiry window — so the practical value depends on how often you log in, not on the headline number. Limitation: like every operator on this page, Kikibet is licensed outside Great Britain, so UK Gambling Commission dispute routes and GAMSTOP integration do not apply to it.
Betninja — a flatter offer that is easier to read
Betninja earns its place for the opposite reason to the two above: a flat £1,000 bonus and 100 free spins for new players is a simpler structure to evaluate, with fewer tiers and a clearer relationship between deposit and bonus. For readers who find percentage packages confusing, that clarity has real value when you are working out what you must stake before a balance becomes withdrawable. Limitation: the ceiling is much lower than the headline figures elsewhere on the list, and a simpler bonus does not mean a lighter wagering requirement — the multiplier still decides that.
Money: what taking part costs and how you get paid
Using Non Gamstop Casinos costs nothing. Everything below concerns the operators, and the detail always comes from their cashier pages rather than from us.
- Minimum deposits. Offshore casinos typically set a qualifying minimum for a welcome bonus that is higher than the site's ordinary minimum deposit. Depositing less than the qualifying amount usually forfeits the offer entirely.
- Debit cards. Visa and Mastercard debit are the most common route for UK players. Credit cards are banned for gambling in Great Britain, and some UK banks decline gambling transactions to non-GB-licensed sites regardless of the casino's own acceptance.
- E-wallets. Availability varies by operator and by country. PayPal in particular is generally restricted to UK-licensed gambling businesses, so do not assume it works at a non GamStop site — check the cashier before you plan around it.
- Bank transfers. Usually available for larger withdrawals, usually the slowest option, and sometimes subject to an intermediary fee outside the casino's control.
- Cryptocurrency. Common at offshore operators and often the fastest payout route, but the value of your balance can move between deposit and withdrawal, and exchange or network fees apply.
- Currency conversion. Where an account is held in euros or dollars rather than GBP, your bank or card issuer will apply its own conversion rate and may add a fee on both deposit and withdrawal.
- Withdrawal timings and limits. Processing times advertised by operators are targets, not guarantees, and the clock normally starts only after identity checks clear. Daily, weekly and monthly withdrawal caps are common, and large wins may be paid in instalments.
- Verification. Expect KYC identity checks and, for larger sums, source-of-funds checks. Submitting documents early usually shortens the wait.
We publish payment information as we find it on operator sites. We cannot guarantee that a method remains available to you, that a payout arrives within an advertised window, or that fees have not changed since our last review.
What you will find in the games we describe
Our listings describe game libraries in the categories operators actually use, and nothing on this site is a catalogue you can rely on as complete or current:
- Slots — including progressive jackpot titles, with return to player and volatility varying by game. RTP is a long-run theoretical figure, not a guide to any single session.
- Table games — blackjack, roulette and baccarat in multiple rule variants, which change the house edge.
- Live dealer rooms — streamed tables with their own bet limits, usually separate from the main lobby.
- Mobile play — most lobbies run in a browser on phones; some titles and features are unavailable on smaller screens.
Game availability depends on the software providers an operator has licensed, and providers withdraw titles from certain markets without notice. Bonus terms frequently exclude or discount particular categories — table and live games often contribute far less than 100% towards wagering.
Sports betting and other product lines
Several of the operators we list run a sportsbook alongside the casino, often on a shared wallet so a single balance covers both. The terms differ from casino terms in ways that matter: sports free bets carry minimum qualifying odds (commonly around 1.50 in decimal terms), stake is usually not returned with winnings, and cash-out offers are withdrawn at the operator's discretion. Pre-match and in-play markets, accumulators, bet builders and esports books are common additions. Poker, where offered, runs on rake rather than house edge and has its own bonus release mechanics. Where our pages describe these, the same rule applies: the operator's published terms govern, not our summary.
Legal standing, regulation and your obligations
The casinos listed here operate under overseas licences rather than a UK Gambling Commission licence. That is the defining feature of a non GamStop casino. Two consequences follow, and you should weigh both:
- They are not connected to GAMSTOP, so a GAMSTOP exclusion taken in Great Britain does not block registration with them. Neither does it stop applying to you — the exclusion period you chose is still running.
- UK Gambling Commission rules on advertising, bonus fairness, deposit limits and dispute resolution do not apply to them. Complaints go through the operator's own procedure and then, where one exists, its licensing authority or an alternative dispute resolution body. Outcomes are not guaranteed and can take months.
Accepting British customers is not the same as being authorised to serve the Great Britain market, and we do not present it as such. We report licensing details as published by the operator and its regulator; where a claim cannot be verified we say so rather than repeating it. You are responsible for any tax, banking or legal consequence of your own gambling activity.
Accuracy, changes and liability
We check the information on this site against operator and regulator sources and date our findings. Bonus terms, payment methods, licence status and ownership can change at any time, and sometimes do so between our review and your visit. We make no warranty that content is complete, current or error-free.
To the extent permitted by law, Non Gamstop Casinos is not liable for losses arising from gambling with any operator listed here, from reliance on information published on this site, or from a third-party site being unavailable, changed or withdrawn. Links to operators are provided for information; we do not control their sites and are not responsible for their content or conduct. We may amend, reorder or remove listings, and may update these terms at any time by publishing a revised version on this page.
Intellectual property and acceptable use
Editorial text, ratings, comparison tables and page structure on theunderbelly.co.uk belong to us. Operator names, logos and trade marks belong to their owners and appear for identification only. You may quote short extracts with a clear credit and a link; wholesale copying, automated harvesting or republication is not permitted.
Complaints, corrections and how to reach us
If you believe something here is wrong, out of date or unfair to an operator or a reader, tell us and we will check it. Corrections are made on the page rather than quietly removed. Editorial policy and the people behind the site are set out on our about page, and factual queries, correction requests and commercial enquiries all go through the contact form.
Complaints about a casino account — a delayed withdrawal, a voided bonus, a closed account — must be raised with that operator first, in writing, through its published complaints procedure. We have no authority over operator decisions and cannot recover funds on your behalf.
Gambling should stay affordable
Nothing on this site presents gambling as income or as a way out of financial difficulty. Set deposit and loss limits before you play, use blocking software if you need a firmer boundary, and treat the stakes as money you can lose. Free, confidential support in the UK is available from GamCare on 0808 8020 133, 24 hours a day, and through the National Gambling Helpline. If you are considering a break, the tools on our responsible gambling page are the right place to start rather than a new account.
These terms are governed by the laws of England and Wales. If any provision is found unenforceable, the remainder continues to apply. If you do not accept them, please stop using the site.