About Us
Non Gamstop Casinos is an independent research and comparison site covering casinos not on GamStop for readers in Great Britain. We do not run a casino, take deposits or accept bets. We read terms and conditions, check licence registers, record bonus conditions and payment details, and publish what we find — including the parts operators would rather bury in clause 14.
This page explains who is behind the site, how our reviews of non GamStop casinos are put together, where the money comes from, and the limits of what any comparison site can tell you. If you came here to check whether we are worth trusting before you act on anything we publish, that is exactly the right instinct.
Who writes this site
Editorial work on marthagellhorn.com is led by Mairi Stewart, who writes and maintains the casino reviews, bonus breakdowns and payment guides. The approach is that of a consumer editor rather than a gambling enthusiast: read the small print, compare like with like, and say plainly when an offer is worse than it looks.
Findings on this site are based on published operator terms, licensing registers, software provider information and publicly documented player experiences. We research and verify — we do not claim to have deposited money, played games or withdrawn winnings at the casinos we cover. Where something could not be confirmed, we say so rather than filling the gap with a guess. Time-sensitive details carry the date they were checked; this page was last fact-checked on 23 September 2026.
How we are paid, and what that does not buy
Non Gamstop Casinos earns commission when a reader follows a link to a casino and opens an account. That is the whole business model, and it is worth stating plainly because it creates an obvious tension: the sites that pay us are the sites we write about.
Our controls on that are simple. Commercial relationships do not set rank order or editorial ratings. An operator cannot buy a higher position, remove a criticism, or stop us publishing a poor score. Every casino in our top list carries at least one stated drawback, because a review with no drawbacks is an advert. If you would rather not use our links, you lose nothing — the research on the page is the same either way.
How we assess a non GamStop casino
We apply the same checklist to every operator, and the weightings reflect what actually goes wrong for UK players at offshore sites.
- Licence and ownership — which regulator the licence sits with (commonly Curaçao, Anjouan or similar overseas jurisdictions), the named licence holder, and which group operates the brand. None of these sites hold a UK Gambling Commission licence, which is why they are outside GamStop.
- Bonus terms — headline percentage against wagering requirement, game contribution, maximum bonus bet, expiry window and any cap on what a bonus can pay out.
- Payments — whether GBP accounts are available, which deposit and withdrawal methods are advertised, minimum deposits, fees and conversion costs.
- Withdrawals — stated processing times, daily, weekly and monthly limits, and how KYC and source-of-funds checks are described.
- Games and providers — the mix of slots, table games and live dealer rooms, and which studios supply them.
- Support and complaints — contact channels, stated hours, and whether any independent dispute route exists.
Ratings are editorial scores out of ten produced by us. They are not customer-review averages, not a safety certificate and not a prediction of your experience. Advertised withdrawal speeds are the operator's claim, reproduced as such.
Three of the casinos we rank, and why
Our full comparison lives on the non GamStop casinos top list. These three show how we weigh an offer against its conditions.
Betmica — our top-rated pick, and the biggest headline number
Betmica sits first on our list because it combines a broad slots and live dealer catalogue with GBP-denominated play and a promotional structure that is unusually clearly documented for an offshore brand. Its welcome offer is advertised as 570% up to £5,700 plus 270 free spins, spread across qualifying deposits; as with every bonus of this scale, the headline is a ceiling, not an expectation, and it is released in stages rather than as a single lump.
Limitation: an offer that large carries wagering and maximum-bet conditions that make full clearance impractical for most casual players, and free spins typically attach to named slots with their own cap on winnings. Treat it as extended play value, not as £5,700 of money.
Kikibet — sizeable spins package with a mid-tier deposit ladder
Kikibet earns its place for a deposit ladder that is easier to complete than the largest packages on the market, paired with 300 free spins. The advertised offer is 350% up to £5,555 and 300 free spins, with the spins released over successive days rather than all at once. Slots dominate the library, with a functional live dealer section alongside it.
Limitation: staged spin releases mean the package expires in instalments, so a reader who deposits and then does not return for a fortnight will forfeit part of it. Check the daily release schedule before the first deposit.
Betninja — a flatter, more readable welcome offer
Betninja is here for readers who find four-figure percentages off-putting. Its £1,000 bonus and 100 free spins for new players is a smaller, plainer package, which usually means a shorter route through the wagering requirement and fewer conditions to track. That trade — less headline value, more realistic completion — suits people testing a site before committing.
Limitation: a smaller bonus still carries the same structural restrictions on maximum bet and game contribution, and the lower ceiling gives higher-stakes players less reason to choose it over the larger packages above.
Where the rest sit
| Casino | Advertised welcome offer | Editorial rating |
|---|---|---|
| WinnerIsland | Welcome bonus up to €1,000 + 100 free spins | 9.9 |
| Zombillion | Welcome pack 250% up to £4,000 + 200 free spins | 9.8 |
| Smash Casino | 600% up to €10,000 slots welcome package | 9.8 |
| Nightluck | €6,400 + 280 free spins + 805% | 9.6 |
| CoinPoker | 150% up to $2,000 | 9.6 |
| Rivo | Slots package 1000% up to €10,000 + 25% cashback | 9.6 |
| Daytonaspin | 255% up to £4,500 + 255 free spins | 9.5 |
Note the currencies. WinnerIsland, Smash Casino, Nightluck and Rivo quote in euros and CoinPoker in dollars. If an account is not held in pounds, every deposit and withdrawal may attract a conversion charge from the casino, your bank or both. That cost is easy to overlook and it recurs.
What we cover on money: costs, payments and payouts
Taking part costs whatever you deposit — there is no membership fee, and nothing on this site charges you anything. Minimum deposits at the brands we list generally start in the £10 to £20 range, and a bonus usually has its own qualifying minimum that is higher than the site minimum.
- Debit cards — Visa and Mastercard are widely accepted. UK-issued credit cards cannot lawfully be used for gambling, and reputable offshore sites decline them too.
- Bank transfer — usually available for larger amounts; slowest to clear in both directions.
- E-wallets — Skrill and Neteller are common at offshore casinos. PayPal is rare outside UKGC-licensed sites, so verify before assuming it works.
- Prepaid vouchers — Paysafecard is accepted at some sites for deposits, but generally cannot receive a withdrawal, so you will need a second method to be paid.
- Cryptocurrency — increasingly common, often the fastest advertised payout route, but the value of your balance can move between deposit and withdrawal.
Withdrawals are where offshore casinos differ most from UK-licensed ones. Expect identity verification (KYC) before a first payout, source-of-funds checks on larger sums, and caps stated per day, week or month. A £5,000 win at a site with a £1,000 weekly cap is paid over five weeks. We record those limits in our reviews because they matter more than the withdrawal speed advertised on the homepage.
What these sites actually offer
The catalogues we assess break down into a few consistent categories. Slots make up the bulk, from low-volatility spinners to high-variance titles and progressive jackpots pooled across operators. Table games cover blackjack, roulette and baccarat in RNG form. Live dealer rooms stream real tables, usually with wider stake ranges and separate bonus rules — live games often contribute little or nothing to wagering requirements. Published RTP figures and volatility ratings are the useful comparison points; both come from the software provider, not from us.
The sportsbook side
Several of the brands we cover run a sportsbook beside the casino, and the rules there are different. Sports free bets carry minimum qualifying odds — often around 1.50 in decimal terms — rather than a wagering multiple. Pre-match and in-play markets, accumulators, bet builders and cash-out are standard features, with esports increasingly listed alongside football and racing. Where a casino and sportsbook share one wallet, a casino bonus may lock funds you wanted to bet with, so read which product a promotion applies to before depositing.
Regulation, eligibility and what you give up
You must be 18 or over. The casinos we list operate under overseas licences and are not licensed by the UK Gambling Commission, so they are not part of GamStop, the free self-exclusion scheme covering operators licensed in Great Britain. That distinction matters: accepting British customers is not the same as being authorised to serve them, and GamStop's scope is Great Britain rather than the whole UK.
Practically, playing outside UKGC oversight means no recourse to the Gambling Commission if a dispute arises, no UK-mandated affordability framework, and complaint routes limited to the operator and whatever alternative dispute body its licence names. Deposit and loss limits, if offered, are set by the operator rather than required by regulation.
If you registered with GamStop, the exclusion runs for the six-month, one-year or five-year period you chose and cannot be lifted early. Choosing to gamble during that period works against a decision you made deliberately. Our responsible gambling guidance sets out blocking software, bank gambling blocks and free confidential support from GamCare on 0808 8020 133. Nothing here should be read as encouragement to gamble, and gambling is never a way to make money or fix a financial problem.
Corrections and contact
Offshore casinos change terms without notice, and a bonus condition verified in one month can be different the next. If you find something on marthagellhorn.com that is out of date or wrong, tell us and we will check it and amend the page. Our contact page reaches the editorial inbox, and the site terms set out the basis on which this information is published.
The most useful thing you can do with this site is treat it as a starting point: read our notes, then read the operator's own terms before you deposit. If the two disagree, the operator's terms are the ones that will be enforced — and we would like to hear about the discrepancy.