About Us
Non Gamstop Casinos is an independent research and comparison site covering offshore online casinos that accept British customers but are not connected to GamStop. Most of the operators we write about hold a licence from Curaçao, so this page explains who we are, how we assess Curaçao casinos not on GamStop, where our money comes from, and — just as importantly — the limits of what anyone can verify about an overseas gambling site.
We are not a casino and we do not accept deposits, bets or wagers. We publish reviews, comparison tables and explainers. If you want the current ranked list rather than our methodology, the reviewed non GamStop casino list is the place to start.
Why we cover casinos outside the GamStop scheme
GamStop is the free self-exclusion service that every operator licensed by the UK Gambling Commission must integrate. Register with it and you are blocked from all UKGC-licensed gambling sites in Great Britain for your chosen period of six months, one year or five years. Casinos licensed offshore — in Curaçao, Anjouan, Costa Rica and similar jurisdictions — are not part of that system, so a GamStop registration does not reach them.
That gap is heavily marketed to British players, usually with very large bonus percentages and very little explanation of the trade-offs. Our position is simple: people are searching for these sites either way, and they are better served by plain descriptions of licensing, wagering terms and withdrawal conditions than by advertising copy. Accepting British customers is not the same thing as being authorised to serve them. A Curaçao licence permits the operator to run a gambling business under Curaçao law; it does not bring UKGC consumer protections, the UK's deposit-limit and affordability rules, or access to the Gambling Commission's complaints routes.
If you are currently self-excluded through GamStop, the honest advice is to leave your exclusion intact. Our responsible gambling page sets out GamCare's helpline, blocking software and bank-level gambling blocks. Nothing on this site is intended as a route around a decision you made to protect yourself, and gambling is never a way to make an income or fix money problems.
How we are paid, and what that does not buy
Non Gamstop Casinos earns commission when a reader follows a link to an operator and opens an account. That is how the site is funded and we would rather say so up front than bury it. Two things follow from it that we hold to:
- Commission rates play no part in ranking order or editorial ratings. An operator cannot buy a position, a score or the removal of a criticism.
- Every write-up carries at least one genuine limitation. If we cannot find something critical to say about a site, that usually means we do not know enough about it to recommend it yet.
Our ratings are editorial judgements made by our team. They are not customer-review averages, trust scores or any kind of certification, and they should not be read as one. Where an operator advertises a payout speed or a bonus figure, we report it as advertising and label it as such — we have not deposited, played or withdrawn at these casinos, and we do not claim otherwise.
What our research actually involves
Every site we cover goes through the same checks, all of them desk-based and repeatable. Findings were last reviewed on 23 September 2026.
- Licence and ownership. We look for a named licensee, a stated jurisdiction and a company address in the site footer and terms. Under Curaçao's current regime, licences are issued and supervised by the Curaçao Gaming Authority; we note where a claim cannot be corroborated rather than repeating it.
- Bonus terms in full. Headline percentages are close to meaningless on their own. We read wagering requirements, game contribution rates, maximum bonus bet caps, expiry windows and cashout limits, then say what the offer looks like once those apply.
- Payments for British customers. Whether GBP accounts are genuinely offered or whether balances convert, which debit cards, bank transfers, e-wallets and cryptocurrencies are accepted, minimum deposits, and any fees or conversion spreads. PayPal is rare at offshore casinos, so we verify availability rather than assuming it.
- Withdrawals. Advertised processing times, daily, weekly and monthly limits, KYC and source-of-funds requirements, and whether pending periods apply.
- Games and providers. The breadth of slots, jackpots, live dealer tables and any sportsbook, plus which software studios supply them and whether RTP information is published.
- Support and complaints. Contact channels, stated hours, and what the terms say about dispute escalation and any alternative dispute resolution body.
- Player protection tools. Deposit and loss limits, time-outs, reality checks and self-exclusion — which are optional offshore, so their presence or absence is worth knowing.
How the criteria differ between the sites we rank
Our current top list runs from Betmica through to Daytonaspin. The table below compares the headline offers as advertised by each operator, with the currency they are promoted in — a detail that matters, because a euro-denominated package means conversion for a GBP wallet.
| Casino | Advertised welcome offer | Promoted currency | Our rating |
|---|---|---|---|
| Betmica | 570% up to £5,700 + 270 free spins | GBP | 10.0 |
| Kikibet | 350% up to £5,555 + 300 free spins | GBP | 9.9 |
| Betninja | £1,000 bonus + 100 free spins | GBP | 9.9 |
| WinnerIsland | Up to €1,000 + 100 free spins | EUR | 9.9 |
| Zombillion | 250% up to £4,000 + 200 free spins | GBP | 9.8 |
| Smash Casino | 600% up to €10,000 slots package | EUR | 9.8 |
| Nightluck | 805% up to €6,400 + 280 free spins | EUR | 9.7 |
| CoinPoker | 150% up to $2,000 | USD | 9.5 |
| Rivo | 1000% up to €10,000 + 25% cashback | EUR | 9.5 |
| Daytonaspin | 255% up to £4,500 + 255 free spins | GBP | 9.5 |
All figures are the operators' own advertising and are subject to their terms, including wagering requirements, qualifying deposits, maximum bet caps while a bonus is active and expiry dates. Check the current terms on the operator's own site before depositing; promotions change without notice.
Betmica — the reference point for how we read a bonus
Betmica sits top of our list because it is a broad, GBP-facing operation whose welcome structure is documented clearly enough to assess. The advertised offer is 570% up to £5,700 plus 270 free spins, split across staged deposits and subject to a qualifying minimum deposit, wagering on the bonus and spin winnings, and a maximum stake while the bonus is live. That last condition is the one people trip over: breach the bonus bet cap and the balance can be voided.
Limitation: a 570% match produces a bonus balance so large relative to a realistic deposit that clearing the wagering is improbable for most players, and cashout caps can limit what a completed bonus is actually worth. As with every site here, there is no UKGC oversight behind it.
Kikibet — high free-spin count, same offshore caveats
Kikibet earns its place for a comparatively legible signup path and a 350% match up to £5,555 with 300 free spins, promoted in sterling. The lower match percentage is arguably a point in its favour: less bonus money against your deposit usually means a wagering target you can at least picture finishing. Spins are typically credited in daily batches on nominated slots at a fixed spin value, with winnings wagered separately.
Limitation: free-spin winnings at offshore casinos commonly carry their own wagering and a cap on convertible winnings, so 300 spins is not 300 chances at an uncapped payout. We have not verified its withdrawal limits independently.
Betninja — a flat cash figure instead of a percentage
Betninja is on the list because its headline is stated as a straight £1,000 bonus plus 100 free spins for new players rather than a multi-hundred-percent match, which makes the maths easier to follow before you commit. For readers who find percentage packages opaque, that clarity has real value.
Limitation: a flat figure still depends entirely on the deposit tiers required to reach it, and reaching the full £1,000 generally means depositing a substantial amount. Support availability and identity-verification turnaround are the areas we would want more confirmed detail on.
WinnerIsland — the currency question in practice
WinnerIsland is included as a useful illustration of a euro-first operator: up to €1,000 plus 100 free spins, priced in euros. British players can usually fund such accounts, but either the casino converts at its own rate or your card issuer does, and that spread is a real cost on both deposit and withdrawal.
Limitation: without a confirmed GBP wallet, conversion costs and payment-provider fees can quietly erode a balance, and the €1,000 ceiling is modest against others here.
Money in, money out — what we look for
Deposits at offshore casinos are typically made by Visa and Mastercard debit card, bank transfer, e-wallets such as Skrill, Neteller or prepaid vouchers, and increasingly by cryptocurrency. Availability varies by operator and changes often, which is why we check rather than assume — UK card issuers sometimes decline gambling transactions to non-UKGC merchants, and some banks block them outright.
- Minimum deposits commonly sit in the £10 to £20 range, but bonus qualification thresholds are often higher than the site minimum.
- Fees may be charged by the casino, the payment processor, or both; currency conversion is a separate cost where the account is not held in pounds.
- Withdrawal timings are advertised rather than measured. Expect a review period before processing, then the method's own settlement time.
- Withdrawal limits — daily, weekly or monthly caps are standard offshore, and a large win may be paid in instalments over weeks.
- KYC means identity, address and payment-ownership documents. Larger or unusual amounts can trigger source-of-funds checks. Verifying early is the single most effective way to avoid a stalled payout.
The games and betting we describe
Coverage on this site spans the categories these operators actually run: slots, including progressive jackpot titles and high-volatility releases where RTP is published; live dealer rooms with blackjack, roulette and baccarat streamed from studios; RNG table games; and mobile play through the browser rather than a dedicated app in most cases. We name software providers only where an operator's own game lobby confirms them.
Several of these brands also run a sportsbook alongside the casino, often on a shared wallet, which is worth understanding because a casino bonus can restrict sports betting and vice versa. That side covers pre-match and in-play markets, accumulators, bet builders, cash-out and esports, with free bets usually tied to minimum qualifying odds — commonly around 1.50 in decimal terms. CoinPoker is the outlier in our list: it is a poker-led, crypto-native platform rather than a conventional slots casino, so cash games and tournaments are its core product and its 150% up to $2,000 offer releases against rake rather than plain deposit wagering.
Who this site is for, and who it is not
- Suitable for: adults aged 18 or over in Great Britain who are not self-excluded and want the terms behind offshore casino advertising explained before they decide.
- Not suitable for: anyone registered with GamStop, anyone using bank or device gambling blocks, anyone under 18, and anyone gambling with money they cannot afford to lose.
We cannot and will not describe any casino as completely safe, and we cannot guarantee that any withdrawal will be paid. Offshore dispute resolution is weaker than the UKGC framework, so read each operator's complaints procedure before you deposit and keep your own records of transactions and correspondence. Our terms and conditions set out the basis on which we publish.
Corrections and contact
Our pages are written and reviewed by Georgina Alcott and dated so you can see how current they are. Terms at offshore casinos change frequently and without announcement; if you find something on iu-hq.com that no longer matches an operator's published terms, tell us and we will check it and amend or remove it. The contact page reaches us directly, and correction requests from readers get the same attention as anything else in the inbox.
If gambling has stopped being entertainment, GamCare's National Gambling Helpline is free on 0808 8020 133, 24 hours a day.