About Us
Who We Are
Non Gamstop Sites is an independent comparison and review website operated from the UK. We research, evaluate and list online casinos that operate outside the GamStop self-exclusion scheme, giving UK adults access to clear, honest information about their options. We do not run any gambling services ourselves — every casino listed on this site is operated by a third-party provider.
Our team consists of researchers and writers with hands-on knowledge of the online gambling industry. We monitor the casinos we cover on a continuing basis, updating our assessments when offers, terms or conditions change. Every page carries the date it was last reviewed so you always know how current the information is.
Why This Site Exists
GamStop is a free UK self-exclusion register that lets players block themselves from UKGC-licensed gambling sites. For many people it is a valuable tool. However, there is also a large and legitimate market of casinos that hold licences from other respected jurisdictions — Curaçao, Malta, Gibraltar and others — that are not part of the GamStop scheme. These sites are legal to access from Great Britain.
Players researching this space often find it hard to separate well-run, properly licensed operators from those that fall short on fairness or player protection. That is the gap this site is built to fill: straightforward, independently produced guidance on which casinos are worth considering and why.
How We Research and Rate Casinos
Every casino that appears on Non Gamstop Sites goes through the same structured review process. No operator can pay for a higher position — commercial relationships cover our running costs but do not decide rankings. The criteria we apply are:
- Licensing and regulation — we verify that the operator holds a current licence from a recognised authority outside the UK.
- Bonus fairness — we examine wagering requirements, time limits, eligible games and maximum withdrawal caps before reporting any welcome offer.
- Game library depth — range of slots, table games and live-dealer options from established software providers.
- Banking options — availability of payment methods relevant to UK players, including deposit and withdrawal speeds and any fees.
- Customer support — responsiveness and availability of help channels.
- Overall player experience — site usability, mobile compatibility and account management features.
These factors are combined into an editorial rating out of 10. Ratings reflect our independent assessment only. You can browse our current top-rated picks on the main casinos not on GamStop page.
Our Top-Ranked Casinos at a Glance
The casinos below represent the highest-rated options from our current research. Each has been reviewed against the criteria above. Brief write-ups follow the table.
| Casino | Editorial Rating | Headline Welcome Offer |
|---|---|---|
| Betmica | 9.9 / 10 | 570% up to £5,700 + 270 Free Spins |
| Smash Casino | 9.9 / 10 | 600% up to €10,000 Slots Welcome Package |
| Kikibet | 9.8 / 10 | 350% up to £5,555 + 300 Free Spins |
| Rivo | 9.8 / 10 | 1000% up to €10,000 + 25% cashback (slots) |
| WinnerIsland | 9.6 / 10 | Welcome bonus up to €1,000 + 100 Free Spins |
| Zombillion | 9.5 / 10 | 250% up to £4,000 + 200 Free Spins |
| Gambiva | 9.3 / 10 | 800% up to €10,000 |
| Nightluck | 9.1 / 10 | €6,400 + 280 FS + 805% |
| Daytonaspin | 9.1 / 10 | 255% up to £4,500 + 255 Free Spins |
| Betninja | 9.7 / 10 | £1,000 Bonus + 100 Free Spins |
Welcome offers are subject to terms, wagering requirements and eligibility conditions set by each operator. Always check the current terms directly with the casino before registering. 18+ only.
A Closer Look at Our Highest-Rated Picks
Betmica — Rated 9.9
Betmica sits at the top of our current rankings primarily because of the breadth of its game library combined with a standout welcome package. The 570% match up to £5,700 is one of the largest bonus ceilings available to UK players at non-GamStop casinos, and the 270 free spins add immediate slot value on top. Our review found the site's banking section accommodates a wide range of deposit methods relevant to the UK market, and withdrawal processing times compared favourably with similar operators.
The limitation to note: very high percentage bonuses of this kind almost always come with substantial wagering requirements. Players should read the full bonus terms before claiming — the face-value figure and the realistic realisable value can differ significantly.
Smash Casino — Rated 9.9
Smash Casino shares the top editorial rating and earns it through a particularly strong slots offering. The 600% welcome package up to €10,000 is targeted specifically at slots players, which means it suits that audience well but is less relevant to those primarily interested in table games or live dealer titles. Our research found a well-organised interface, competitive promotions beyond the welcome offer, and multiple banking options with reasonable processing times.
One genuine drawback: because the welcome bonus is slots-focused, players who prefer blackjack, roulette or live casino may find its headline offer less useful than it appears.
Kikibet — Rated 9.8
Kikibet's welcome offer — 350% up to £5,555 plus 300 free spins — is denominated in sterling, which is straightforward for UK players managing their bankroll without currency conversion. Our review highlighted a solid all-round game selection covering slots, classic table games and live dealer rooms. The free spin count of 300 is among the highest of any casino in this list.
The limitation: while the bonus ceiling is generous, a 350% match still requires players to deposit a meaningful sum to reach the upper end. As with all large welcome packages, wagering conditions apply and should be reviewed carefully.
Rivo — Rated 9.8
Rivo stands out for two reasons: the 1000% slots welcome package up to €10,000 is the highest percentage multiplier in our current top ten, and the addition of 25% cashback provides a meaningful safety net on losses that most competitors do not offer alongside their initial bonus. This combination is particularly appealing to high-volume slots players.
The caveat here is important: a 1000% match sounds remarkable, but the deposit required to maximise it, and the wagering attached, will be proportionately large. Cashback terms also vary — always confirm whether cashback applies to net losses or gross wagers, and whether it is capped.
Affiliate Disclosure
Non Gamstop Sites earns commission when readers register at casinos through links on this site. This income funds the site's operation. It does not determine which casinos are listed or where they rank — our editorial ratings are based solely on the research criteria described above. Casinos that do not meet our standards are not listed regardless of any commercial arrangement.
Legal Position for UK Players
In Great Britain, it is not unlawful for adults to access and play at online casinos that are licensed in other jurisdictions. The UK Gambling Commission licenses operators targeting the UK market, but players are not legally prohibited from using sites licensed elsewhere. Non-GamStop casinos typically hold licences from regulators such as the Curaçao Gaming Control Board or the Malta Gaming Authority, among others.
Because these sites are not registered with GamStop, a self-exclusion registered on that scheme will not carry over automatically. Players who have self-excluded via GamStop should be aware that those restrictions will not apply at casinos outside the scheme. We provide information about additional self-exclusion and support tools on our responsible gambling page.
All players must be 18 or over. This site does not encourage participation by anyone under that age.
What Non-GamStop Casinos Offer
Beyond their headline welcome bonuses, the casinos we cover typically provide:
- Slots — the largest category on most sites, spanning classic three-reel games, video slots with multiple paylines, and high-volatility jackpot titles from established software studios.
- Table games — digital versions of blackjack, roulette, baccarat and poker variants, often with multiple rule sets and stake levels.
- Live dealer rooms — real-time streamed games hosted by live dealers, offering a closer experience to a physical casino.
- Sports and other betting — a number of the casinos we list also operate sportsbooks, covering football, horse racing, tennis and other markets alongside their casino products.
- Promotions beyond the welcome offer — reload bonuses, free spin drops, loyalty programmes and VIP tiers are common across the casinos in our top ten.
Payment Methods
Most non-GamStop casinos accept a range of payment methods accessible to UK players. Common options include debit cards (Visa and Mastercard), e-wallets such as Skrill and Neteller, and in some cases cryptocurrency. Processing times and any applicable fees vary by operator and by method — withdrawals via e-wallet tend to be faster than card withdrawals. Each casino's own banking page is the definitive source for current limits, fees and processing windows. Always check these before registering if speed or method availability is a priority.
How to Choose the Right Casino
The right casino depends on what you are looking for. A few practical checks:
- Read the bonus terms in full before claiming — focus on the wagering requirement, the time limit and the maximum withdrawal from bonus funds.
- Confirm your preferred payment method is supported and check withdrawal times.
- Look at the game library for the categories you actually play, not just the total game count.
- Check the customer support options — live chat availability and response times matter if something goes wrong.
- Review the site's licensing information, usually found in the footer.
Our full casino listings page sets out how each operator performs across these criteria, with detailed write-ups to support your decision.
Get in Touch
If you have a question about this site, a correction to suggest, or feedback on a casino we cover, we want to hear from you. Use our contact page to reach the team. We aim to respond to all genuine enquiries promptly.