These Terms & Conditions ("Terms") govern your use of winnerislandbet.nl and all services provided by Winner Island ("we", "us", "our"). By registering an account, making a deposit, claiming a promotion, or placing a bet, you confirm that you have read, understood, and agreed to these Terms in their entirety. Please read them carefully before proceeding.
winnerislandbet.nl is owned and operated by Winner Island, licensed under the jurisdiction of the Union of the Comoros. Winner Island launched in 2026 and provides casino gaming, live dealer tables, and sports betting services through a single unified platform accessible at winnerislandbet.nl.
All gaming and betting activities offered on this site are conducted under the authority of the licence issued by the Union of the Comoros. By accepting these Terms, you acknowledge that you are subject to the regulatory framework of that jurisdiction in respect of your use of this site.
You must be at least 18 years of age, or the minimum legal gambling age in your jurisdiction if that is higher, to register an Account and use the Site. We reserve the right to request proof of age at any time. If we determine that a player is underage, the Account will be suspended immediately, any winnings will be forfeited, and all deposited funds will be returned to the payment method used.
It is your sole responsibility to ensure that online gambling is legal in your jurisdiction before registering. Winner Island does not accept registrations from jurisdictions where online gambling is prohibited. We reserve the right to decline registration or close an Account if we become aware that a player is located in a restricted territory.
Each player is permitted to hold one Account only. Duplicate accounts are strictly prohibited. If we detect multiple accounts held by the same individual — identified by, but not limited to, name, address, email address, IP address, device fingerprint, or payment method — we reserve the right to close all duplicate accounts, void any associated winnings, and retain any deposited funds pending investigation in accordance with our anti-money-laundering obligations.
You must provide accurate, complete, and truthful information during registration and keep that information current throughout your time as a customer. Any material misrepresentation entitles Winner Island to close your Account and void outstanding balances.
You are solely responsible for maintaining the confidentiality of your login credentials. Winner Island will not be liable for any loss arising from unauthorised access to your Account where you have failed to take reasonable steps to protect your credentials. You must notify us immediately at [email protected] if you suspect unauthorised access to your Account.
Winner Island operates a robust KYC programme in compliance with its licensing obligations and anti-money-laundering commitments. Verification may be requested at any stage of your relationship with us, including but not limited to:
Documents we may request include, but are not limited to:
Withdrawals will not be processed until all requested verification documents have been received, reviewed, and approved to our satisfaction. Failure to provide satisfactory documentation within a reasonable timeframe may result in Account suspension or closure.
Winner Island accepts deposits in EUR, USD, and Bitcoin (BTC). The following payment methods are supported:
| Method | Minimum Deposit | Maximum Deposit | Fees (Casino Side) |
|---|---|---|---|
| Visa | €/$ 20 | Method-dependent | None |
| Mastercard | €/$ 20 | Method-dependent | None |
| E-wallets | €/$ 20 | Method-dependent | None |
| Bitcoin | €/$ 20 equivalent | Method-dependent | None |
Winner Island charges no fees on deposits from our side. E-wallet availability varies by region; contact [email protected] for country-specific options.
All deposits must be made from a payment account, card, or wallet registered solely in your own name. Third-party deposits are strictly prohibited. Any deposit found to originate from a third party may result in the funds being returned and the Account being suspended pending investigation.
All real money deposits carry a 1× wagering requirement before a withdrawal may be requested. This means the deposited amount must be wagered at least once in eligible games before withdrawal of that sum is permitted.
Bitcoin deposits are converted at the prevailing exchange rate at the time the transaction is confirmed on the blockchain. Winner Island is not responsible for exchange rate fluctuations between the time you initiate a Bitcoin transaction and the time it is confirmed. Blockchain network fees are the responsibility of the player.
| Limit Type | Amount |
|---|---|
| Minimum withdrawal | €/$ 100 |
| Daily limit | €/$ 4,000 |
| Weekly limit | €/$ 16,000 |
| Monthly limit | €/$ 50,000 |
| Progressive jackpot wins | Paid in full — outside the monthly cap |
Progressive jackpot winnings are treated as a separate payment category. They are not subject to the monthly withdrawal limit and will be paid in full. Winner Island is committed to processing progressive jackpot payments without drip-feeding or enforced instalment arrangements.
Withdrawals are processed within up to 5 banking days from the point at which the request is approved. Processing times may be extended where KYC verification is outstanding or where additional checks are required under our AML obligations.
Withdrawals will be returned to the same payment method used for the original deposit. Where this is not possible due to technical or regulatory reasons, we will contact you to agree an alternative method. Bitcoin withdrawals will be sent to the wallet address you specify at the time of the request.
Winner Island charges no fees on withdrawals. Your bank, card issuer, e-wallet provider, or blockchain network may apply their own charges; these are outside our control and are your responsibility to verify.
A withdrawal request will only be processed once:
Winner Island offers a casino welcome package spread across your first three deposits, totalling up to €1,000 in bonus funds plus 100 free spins on Big Bass Bonanza.
| Deposit | Match % | Maximum Bonus | Free Spins |
|---|---|---|---|
| 1st Deposit | 100% | €100 | 10 spins per day for 10 days on Big Bass Bonanza |
| 2nd Deposit | 50% | €200 | — |
| 3rd Deposit | 25% | €700 | — |
| Casino Total | — | €1,000 | 100 free spins |
A separate sports welcome bonus of 100% match up to €100 is available on your first sportsbook deposit. This offer is independent of the casino welcome package and both may be claimed by the same player, subject to the terms applicable to each offer.
The minimum qualifying deposit for each tier of the casino welcome package and for the sports welcome bonus is €/$20. Deposits below this threshold will not trigger the corresponding bonus.
All bonus funds and free spin winnings are subject to a wagering requirement of 40× (×40) the bonus amount or free spin winnings. Game contributions toward the wagering requirement are as follows:
| Game Category | Contribution to Wagering Requirement |
|---|---|
| Slots | 100% |
| Live casino — roulette, blackjack, baccarat | 10% |
| Standard table games | 5% |
| Jackpot titles | 0% (no contribution) |
Players are advised that playing live casino or table games while a bonus is active is significantly less efficient in terms of clearing wagering requirements. Bets placed on jackpot titles contribute nothing toward the wagering requirement.
All wagering requirements must be fulfilled within 30 days of the bonus being credited to your Account. Any bonus funds and associated winnings remaining in your Account at the expiry of this period will be forfeited without further notice.
While a bonus is active in your Account, the maximum permitted bet per spin or per wager is €5. Any bet placed in excess of this limit while bonus funds are active may result in the forfeiture of the bonus and any associated winnings at our discretion.
In addition to the welcome package, Winner Island offers the following ongoing promotions:
| Promotion | Summary |
|---|---|
| Mystery Treasure Drops | Play today for a mystery reward worth up to €100, credited the following day. |
| Kash Drops | €10,000,000 in cash rewards distributed through eligible slot reels. |
| Sports Weekly Reload | 75% match up to €500 on your weekly sportsbook deposit. |
| MultiBoost | Stack accumulator legs to grow your potential reward with each winning selection. |
| Matchday Boost | Boosted odds on selected standout football fixtures. |
| Telegram Treasures | Exclusive offers for members of the Winner Island Telegram channel. |
Each ongoing promotion is subject to its own specific terms and conditions, which will be published alongside the relevant promotion on the Site or communicated via the applicable channel. General bonus terms set out in this section apply where no promotion-specific term overrides them.
The Winner Island casino library comprises 2,464 titles supplied by a range of third-party game providers, including but not limited to Pragmatic Play, Play'n GO, Hacksaw Gaming, AvatarUX, Kalamba, Animo Studios, 155.io, Novomatic, and Amusnet. The live casino, comprising 71 tables, is primarily powered by Evolution, with additional live content from Pragmatic Play Live, 155.io, and Animo Studios.
Not all games may be available in all jurisdictions. Winner Island reserves the right to add, remove, or modify games in the library at any time without prior notice. Interruptions to game availability may occur due to technical maintenance or third-party provider decisions; we are not liable for any loss arising from temporary game unavailability.
In the event of a technical malfunction or software error during a game round, any bets or transactions affected by that malfunction will be considered void. Winner Island's decision on the outcome of any disputed game round shall be final, subject to your right to escalate a complaint in accordance with Section 15 of these Terms. Malfunction voids all pays and plays.
The Winner Island sportsbook covers eight sports: football, tennis, basketball, table tennis, darts, rugby, ice hockey, and snooker. In-play markets are available daily across a broad range of events, with live odds updating in real time. Accumulator betting is supported, with MultiBoost rewards available for multi-leg accumulators.
The sportsbook shares a single wallet with the casino and live casino. No fund transfers between products are required. One account and one balance cover all activity on the Site.
Winner Island reserves the right to accept or refuse any bet at its discretion. Odds are subject to change until a bet is confirmed. Confirmed bets are binding on both parties. In the event that an obviously erroneous price is offered due to a system or human error, we reserve the right to void affected bets and return stakes.
Bets may be voided where an event is cancelled, postponed beyond the applicable cut-off period, or where the result cannot be determined within a reasonable timeframe. Voided bets will have the stake returned to the player's Wallet. Settlement disputes should be raised with our support team in the first instance.
Matchday Boost and MultiBoost offers are subject to their own specific terms published at the time of the promotion. Boosted odds or reward multipliers are applied at the point of bet placement or settlement as specified in those terms. Winner Island reserves the right to cap maximum returns on boosted bets.
Winner Island is committed to promoting safe and responsible gambling. We believe that gambling should be an enjoyable form of entertainment and we take seriously our responsibility to help players who may be experiencing difficulties.
If you are concerned about your gambling behaviour, we encourage you to take a self-assessment test. Resources are available through our support team and on third-party responsible gambling organisations' websites.
Winner Island offers a range of player-protection tools. To request any of the following, contact our support team via live chat or at [email protected]:
Requests to tighten limits (reduce deposit limits, shorten session times) will be actioned immediately. Requests to loosen limits (increase a deposit limit) may be subject to a cooling-off period before taking effect.
If you wish to self-exclude, please contact us at [email protected] with the subject line "Self-Exclusion Request". Once a self-exclusion is in place, we will use reasonable endeavours to enforce it across our platform. It is your responsibility not to attempt to circumvent a self-exclusion by, for example, opening a new account. Any account opened in breach of a self-exclusion may be closed and relevant balances returned.
We are committed to preventing underage gambling. We recommend that parents and guardians use appropriate filtering software to prevent minors from accessing gambling websites. If you share a device with a minor, please ensure you log out of your Account when not in use and do not allow minors access to your login credentials.
If you are concerned about your gambling, or that of someone you know, the following independent organisations may be able to help:
Winner Island does not operate or endorse these organisations; they are listed solely for informational purposes.
Winner Island collects and processes personal data in accordance with our Privacy Policy, which is available separately on the Site. By registering an Account, you consent to the collection, processing, and storage of your personal data as described in that Policy. Your personal data will be used for the purposes of account administration, KYC verification, fraud prevention, regulatory compliance, and (where you have opted in) marketing communications.
We will not sell your personal data to third parties. We may share your data with payment processors, identity verification services, and regulatory authorities where required by law or our licensing obligations.
Winner Island operates a zero-tolerance policy toward money laundering, fraud, and any other criminal activity. We are obligated to report suspicious activity to the relevant authorities under applicable law. In furtherance of our AML obligations, we may:
Any funds identified as proceeds of crime will be seized and reported to the appropriate authorities. Winner Island will cooperate fully with law enforcement investigations.
The following conduct is strictly prohibited on winnerislandbet.nl:
Where prohibited conduct is identified, Winner Island reserves the right to suspend or close the Account, void any winnings associated with the prohibited conduct, and retain relevant funds pending investigation.
You may close your Account at any time by contacting us at [email protected]. Upon closure, any real money balance remaining in your Account (net of any applicable bonus funds that have not met the wagering requirement) will be returned to your registered payment method, subject to completion of any outstanding KYC requirements.
We reserve the right to suspend or close your Account at any time, with or without notice, where:
An Account is considered inactive if no login activity or real money transaction has taken place for a continuous period of 12 months. Winner Island will contact you at your registered email address before treating your Account as inactive. Where an Account is deemed dormant, administrative fees may be applied to any remaining balance in accordance with applicable law, and the balance may be treated in accordance with the unclaimed funds provisions of our licensing jurisdiction. We will notify you in advance of any such deduction.
If you have a complaint regarding any aspect of your experience at winnerislandbet.nl, please contact our support team in the first instance:
Please provide your Account username, a clear description of the issue, and any supporting evidence. We aim to acknowledge all complaints promptly and to resolve them within 14 days where possible.
If you are not satisfied with our response to your complaint, you may escalate the matter to the relevant dispute resolution body under our licensing jurisdiction. Details of the appropriate body will be provided upon request or included in our final response to your complaint.
These Terms are governed by the laws of the Union of the Comoros. Any dispute arising under these Terms that is not resolved through our internal complaints process shall be subject to the jurisdiction of the applicable regulatory or legal authority under our licence.
All content on winnerislandbet.nl, including but not limited to the Winner Island brand name, logo, website design, text, graphics, and software, is the property of Winner Island or its licensors and is protected by applicable intellectual property laws. You are granted a limited, non-exclusive, non-transferable licence to access and use the Site for personal, non-commercial purposes. You may not copy, reproduce, distribute, modify, or create derivative works from any content on the Site without our express prior written permission.
To the fullest extent permitted by applicable law:
Nothing in these Terms shall exclude or limit our liability for death or personal injury caused by our negligence, fraud, or fraudulent misrepresentation, or any other liability that cannot be excluded or limited by law.
Winner Island reserves the right to amend these Terms at any time. We will notify you of material changes by posting a notice on the Site and/or by email to your registered address with reasonable prior notice. Your continued use of the Site following the effective date of any amendment constitutes your acceptance of the revised Terms. If you do not agree to an amendment, you should cease using the Site and contact us to close your Account.
Winner Island is fully accessible via mobile browsers on iOS and Android devices as well as tablets, without the need to download a dedicated application. The Site is browser-responsive and all features — including casino games, live dealer tables, the sportsbook, account management, and the cashier — are available on mobile. Use of the Site via mobile is subject to these Terms in the same manner as desktop access.
If you have any questions regarding these Terms or your Account, please contact Winner Island through the following channels:
Our support team is available to assist with account queries, payment issues, responsible gambling tools, and general enquiries.
If any provision of these Terms is found by a court or competent authority to be invalid, unlawful, or unenforceable, that provision shall be deemed severed from the remaining Terms, which shall continue in full force and effect.
These Terms, together with our Privacy Policy, Bonus Terms, and any promotion-specific terms published on the Site, constitute the entire agreement between you and Winner Island with respect to your use of the Site and supersede all prior agreements, representations, or understandings.
These Terms were last updated in 2026. Winner Island reserves the right to update these Terms at any time in accordance with Section 18. Continued use of winnerislandbet.nl constitutes acceptance of the current Terms.
