About Us
Sites Not on GamStop is an independent review and comparison platform for UK players researching casinos and betting sites that operate outside the GamStop self-exclusion scheme. We exist to give you clear, factual information — what these sites offer, how they are licensed, and how they compare — so you can make your own informed decisions.
We are not a casino, and we do not take bets. Everything you read here is the result of desk research, editorial review and ongoing verification. Our job is to surface the detail that would otherwise take you hours to piece together yourself.
Why This Site Exists
GamStop is the UK's free voluntary self-exclusion register. When a player enrols, participating operators are required to block their access. However, casinos licensed outside the UK — predominantly in jurisdictions such as Curaçao — are not participants in GamStop and are therefore accessible to UK players regardless of their GamStop status.
That is a factual reality. Players seek these sites, and they deserve accurate information about them rather than having to navigate marketing copy alone. Sites Not on GamStop was built to meet that need: a single, editorially independent resource covering the non-GamStop casino market with honesty about what is on offer and what the risks are.
We cover topics including the top-rated non-GamStop casinos available to UK players, welcome bonuses, payment methods, game ranges, licensing arrangements and safer play options. If you have questions or feedback, our contact page is always open.
How We Research and Rate
Every site we feature goes through the same editorial process. There are no shortcuts, and no operator can buy a higher position. Here is what that process covers:
- Licensing verification — We confirm what licence the operator holds, which jurisdiction issued it, and what player-protection obligations apply. We do not list sites with no verifiable licensing at all.
- Welcome offer terms — The headline bonus figure is only the start. We check wagering requirements, eligible games, time limits, maximum bet rules and withdrawal caps before an offer is described anywhere on this site.
- Payment methods — We examine which deposit and withdrawal methods are available to UK players, whether GBP is supported, and what fees or processing times apply to each route.
- Game catalogue — We review the breadth and quality of the library: slots, table games, live-dealer rooms and any sports or speciality betting. We also check which software providers supply the content.
- Safer play tools — We look for deposit limits, session controls, self-exclusion options and links to support organisations, even on sites outside the GamStop scheme.
- Customer support — We assess the available channels, stated hours and the quality and speed of responses based on our research.
Ratings reflect the outcome of this process for each operator. A site's editorial score can change when its terms, ownership or licence status change, and we update our pages accordingly.
A Note on Editorial Independence
Sites Not on GamStop earns revenue through affiliate arrangements. When you follow a link from this site and register with a casino, we may receive a commission from that operator. We state this plainly because transparency matters.
Commission never determines ratings or rank order. Operators cannot pay for a higher score, a better position or the removal of a limitation we have identified. Every write-up on this site names at least one genuine drawback, including those for our highest-rated options. Our editorial credibility is the only thing that makes this site worth reading, and we will not compromise it.
The Sites We Cover
The casinos reviewed on Sites Not on GamStop are selected because they are relevant to this market, carry verifiable licences from recognised offshore regulators, and meet a minimum standard across the criteria above. Below is a snapshot of the operators currently featured, with their editorial ratings and headline offers.
| Casino | Editorial Rating | Headline Welcome Offer |
|---|---|---|
| Betmica | 9.9 / 10 | Welcome Offer 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 | Slots welcome package: 1000% up to €10,000 + 25% cashback |
| Betninja | 9.7 / 10 | £1,000 Bonus and 100 Free Spins to All New Players |
| WinnerIsland | 9.6 / 10 | Welcome bonus up to €1,000 + 100 Free Spins |
| Zombillion | 9.5 / 10 | Welcome Pack 250% up to £4,000 + 200 Free Spins |
| Gambiva | 9.3 / 10 | 800% up to €10,000 |
| Nightluck | 9.1 / 10 | €6,400 + 280 Free Spins + 805% |
| Daytonaspin | 9.1 / 10 | 255% up to £4,500 + 255 Free Spins |
All welcome offers are subject to individual terms and conditions set by each operator. Percentage multipliers, maximum bonus amounts, free spin values, wagering requirements and eligible games vary by site. Always read the full terms before registering. 18+ only.
Individual Reviews: Our Top-Rated Options
Betmica
Betmica holds the joint-highest editorial rating on Sites Not on GamStop at 9.9 out of 10. It earns that position through a consistently broad game library, a straightforward account registration process and a welcome offer — 570% up to £5,700 plus 270 Free Spins — that is among the most substantial available in the non-GamStop market in GBP terms, which is directly relevant to UK players. The percentage multiplier is generous, and the free spin allocation is higher than most comparable sites at this rating level.
The offer's scale means the wagering requirements attached to it carry meaningful weight: players should read the full bonus terms carefully before opting in, as the total playthrough on a bonus of this size can be substantial. Betmica is licensed offshore rather than by the UK Gambling Commission, which means UK consumer protections specific to UKGC-regulated sites do not apply here.
Kikibet
Kikibet is rated 9.8 and distinguishes itself with a high free-spin count — 300 — alongside the percentage bonus. Its welcome offer of 350% up to £5,555 is denominated in GBP, which removes currency conversion uncertainty for UK players. The site's game range covers slots from multiple software providers as well as table games and live-dealer content, making it relevant for players who want variety rather than a slots-only experience.
As with all sites in this category, Kikibet operates under an offshore licence rather than a UKGC one. The responsible gambling tools it offers may differ in scope from those mandated under UK regulation, so players who rely on operator-side controls should check what is available before depositing.
Betninja
Betninja takes a different approach to its welcome proposition: a flat £1,000 bonus plus 100 Free Spins, expressed in GBP without a percentage multiplier. For players who find percentage-based offers difficult to model, this framing is simpler to assess upfront. The editorial rating of 9.7 reflects strong performance across payment options and game breadth.
The welcome bonus cap of £1,000 is lower in nominal terms than some competitors on this list, which may matter to higher-stakes players. Betninja, like others featured here, holds a licence outside the UK regulatory framework — something every prospective player should factor into their decision. Full bonus terms, including wagering requirements and restricted game categories, should be confirmed directly with the operator.
WinnerIsland
WinnerIsland is rated 9.6 and rounds out the upper tier of our reviewed sites. Its welcome offer of up to €1,000 plus 100 Free Spins is competitive, though UK players should note that the offer is denominated in euros rather than GBP — exchange rates and conversion fees may apply depending on the payment method used. The site covers slots, live-dealer games and additional categories, giving it a reasonably broad appeal.
One consideration: the euro denomination means the effective GBP value of the bonus fluctuates. Players depositing in sterling should clarify the conversion terms with the operator before committing.
Who Writes for Sites Not on GamStop
The editorial content on this site is produced by Louise Cotterill, with additional research and verification carried out to the standards described above. Content is reviewed and updated on an ongoing basis; the date shown at the top of each page reflects the most recent editorial check.
No content on this site is written by, commissioned by, or approved by any of the casinos we cover. Brand representatives may supply factual corrections, but editorial decisions — including ratings and rankings — remain entirely independent.
Responsible Gambling
Sites Not on GamStop covers sites outside the GamStop scheme, and we do so without judgment about why players seek them out. At the same time, we believe every player should have access to clear information about managing their play.
Non-GamStop casinos vary in the safer play tools they provide. Some offer deposit limits, loss limits, session timers and self-exclusion options independent of GamStop; others offer less. Before registering at any site, it is worth checking what controls are available on that platform directly.
For broader guidance on setting limits, understanding the odds, and finding support if gambling stops feeling like entertainment, visit our responsible gambling page. Free, confidential support is available from organisations including GamCare (gamcare.org.uk) and the National Gambling Helpline (0808 8020 133), regardless of where you are playing.
All content on Sites Not on GamStop is intended for adults aged 18 and over.
Making the Most of This Site
If you are here to compare non-GamStop casinos, the best place to start is our full UK non-GamStop casino guide, which covers our complete ranked list with detailed reviews, bonus breakdowns, payment method comparisons and game category summaries. Our responsible gambling section is there if you want tools and resources before you decide.
Questions about our methodology, a specific review or anything else? Use the contact page and we will get back to you.