Winbig21 Casino
Welcome to Winbig21 Casino. We bring you slots, a first-deposit welcome bonus, cashback insurance, weekly raffles and tournaments, and comp points that build up as you play. Every game can also be tried in fun mode before you stake real money.
Claim your welcome bonusOur casino games
Slot games
Our slot lobby includes Zeus Thunder Tower from Saucify, Caishen's Arrival from Betsoft and Wild Multi Stars from SmartSoft.


















Free-money play
You can play our games in fun money mode for as long as you like, which is an easy way to learn a game before you play with real money. To change your fun balance, open the Cashier from the lobby or from inside any game, press set balance and enter the amount you want. Fun credits are fake credits that do not equal real money.
Our games are made for entertainment rather than as a financial system, and playing for real money is your own decision, together with the risks it carries.
Play nowOur welcome bonus
First-deposit match
Your first deposit with us is matched with a 400% welcome bonus. As a match of 200% or more, it follows the special-bonus cashout rules set out in the next section, along with the general conditions that apply to all our bonus funds.
Claiming and declining a bonus
To play with a promotion, claim it before making a deposit. If you prefer to play without a bonus, tell us before you start. When a bonus has been added and you have not begun to play, our support team will reverse the bonus out of your account on request by email, telephone or live chat. Once you place a wager of any amount, the bonus has to be played through until your balance reaches zero or the wagering requirement is complete.
Free chips and bonus conditions
Bonus funds and wagering
Free bonuses and deposit bonuses are meant to enhance game time only and cannot be withdrawn, so we deduct the bonus amount before a withdrawal is sent. Bonus money helps you generate winnings, but it is non-withdrawable, it is not reissued, and our withdrawal manager deducts it from your winnings during payout. Cashback money is non-withdrawable as well, and we may deduct it from a pending withdrawal.
Unless we state otherwise beforehand, every bonus carries a wagering requirement that must be completed before you can withdraw. While wagering is still attached to your balance you cannot withdraw winnings, so finish the wagering requirements before you request a withdrawal, or the request may be denied. Each bonus has its own details, such as its wagering, restricted games and other conditions, and knowing them is your responsibility. Every promotion is valid only for the period specified in the offer itself or in our own communication about it.
Once you have played down the wagering, we may adjust your balance to the maximum withdrawal allowed and clear any extra balance. If you are not eligible to withdraw, we may clear winnings and balance once wagering is met.
Players from Denmark, China, Japan, Poland and Israel follow separate wagering requirements for our promotions, and another version of our terms also sets separate requirements for players from certain countries.
Special-bonus cashout
Any bonus of 200% or more claimed with a deposit has a maximum cashout of 10x the deposit amount. Bonuses of 200% or more and cashback insurance of 75% or more count as special promotions, and our Special Bonuses category covers every bonus of at least 200% and every cashback bonus of at least 100%.
Cashback money won from a tournament prize, raffle prize or special promotion carries a 1X wagering requirement and a maximum withdrawal of 2X the cashback bonus. Players with a pending withdrawal or a balance over 100 $/€/£ do not qualify for tournament prizes, raffle cash, cashback from an ongoing cashback promotion or any other special promotion from our promotions team.
Free-chip wagering and cashout
Free bonuses, which cover comps, free chips, converted comp points and any other non-deposit bonus, let you play free of charge. They carry their own wagering requirement and a fixed withdrawal limit of no more than 50 Credits, which is 50 $, €, £ or AUD or 500 ZAR, and any extra balance is cleared as non-withdrawable. You can withdraw free-bonus winnings only once in your gaming lifetime unless our casino manager approves it.
Free chips carry a wagering requirement of 20X to 60X unless otherwise specified. If you have never deposited, a free chip win can be withdrawn only after one successful minimum deposit of 15.00 $, €, £ or AUD or 150 ZAR, and that deposit cannot itself be withdrawn. If you have deposited before, you need a deposit within the last 30 days for the withdrawal to be approved. Neither of these deposits can join a pending withdrawal, and if one is added we deduct its amount from the total.
A player who has only played free bonuses and has not deposited yet can withdraw winnings from the first three free bonuses on the account during the first 30 days after registration. After three bonuses or 30 days, free-bonus funds are not cashable and are deducted from the balance or the withdrawal. Withdrawing free-bonus winnings is for active players only, so if you have not added funds for 30 days or more you count as a free bonus player and cannot withdraw winnings from free bonuses or cash we granted.
Mixing a free-play balance with a real-play balance is not allowed, and if you deposit on top of a free chip balance, the playable balance you had before stays under free-play rules.
Free-spin mechanics
When you play free spins, your deposit is put aside and returned to your balance once the spins complete. While your current promotion is still active, certain games are temporarily unavailable. If you wager on restricted games that your bonus or free chip does not allow, we may cancel the withdrawal and confiscate any winnings.
Cashback and rewards
Cashback insurance
Our 100% Cashback Insurance covers you if the house wins.Once your balance has run out, speak with a support agent and they add your real cashback to your account. Cashback promotions carry a 1X wagering requirement, and cashback cannot be withdrawn until it has been wagered in full. Our general cap on cashback is 10X the cashback amount, which also covers cashback given as gifts, comps or free chips, but at 100% this insurance counts as a special promotion, so the 2X cap and the eligibility rules for special promotions apply to it.
Cashtravaganza
When Cashtravaganza is running, eligible players get cover of up to 80% on their deposits during the promotion period, paid as cash into the account the next day.These funds follow the shared bonus conditions above, and the special-promotion caps and eligibility rules apply wherever this offer qualifies as one.
Weekly raffles and tournaments
Join one of our weekly raffles, where qualifying deposits earn raffle tickets and more tickets mean a better chance of winning a cash prize. In our weekly tournaments every bet you make earns a Tourney Point, and the players with the most Tourney Points share a prize pool of $50K.
Tournament, lottery and game prizes can be withdrawn up to a maximum 2 times the amount received, with the rest removed as non-withdrawable, and the special-promotion wagering and eligibility rules above apply. No individual prize is promised to any player.
Comp points
Eligible players who have deposited earn comp points on real-money wagers at 1 comp point per €1 wagered, and 100000 comp points convert into €100,while one version of our loyalty programme, open to players with at least 1 deposit, lists the rate as 1 comp point per $1 wagered at the same conversion. In the cashier, each 1000 comp points is worth one credit, and points are redeemed in even groups of 1000, so a remainder may stay unredeemed until it completes a group.
Under our main terms converted comp points are free bonuses that follow the free-chip wagering range and qualifying-deposit rules, even though another programme version describes them as cash credits with no wagering requirements. The free-bonus cap of 50 credits governs converted points under those main terms, while a separate clause limits comp point withdrawals to 10 times the converted amount up to a maximum limit of 300 €/$/£/AUD.
Refer a friend
The general terms and conditions apply to our refer-a-friend programme.By submitting a friend's details, you and your friend both agree to its terms, your friend consents to you sharing their data, and we may email them an invitation to open a real player account. Your friend must not already be a member, the email you give must not belong to a current player or match your own, and sign-ups from the same computer or the same IP address do not qualify.
You provide your friend's given name, surname and email address, and only after we verify everything do both the referring and referred members receive the bonus. Your friend must open a real-money account and deposit at least 25 $/€/£, and you should allow 48 hours for the bonuses to arrive in both real player accounts. Once your friend has deposited at least $25 and placed a few wagers, we add a $25 bonus to your account, which appears in the cashier's promotions list for you to claim.
Deposits and withdrawals
Deposits
We accept payments only through the options available in the cashier. They include Visa and MasterCard credit and debit cards as well as various web wallets and vouchers, and we name MasterCard, Cashlib, Bitcoin and more as easy deposit options. Our team on 24/7 chat or at [email protected] can tell you which methods suit your country of residence.
The minimum deposit is 5 or 10 EUR, or the equivalent in another available currency, and the maximum ranges from 200 EUR to 1,000 EUR, both set by the payment method.
Deposit only with a bank account, Visa or MasterCard card, payment wallet or other method registered in your own name. If our security checks find otherwise, winnings may be voided and the original deposit refunded to the account it came from. We may also refund transactions based on risk assessments, in which case the deposit is returned and the matching credit removed from your account.
When you deposit with cryptocurrency, make sure the coin has arrived and been confirmed on the blockchain at the wallet address we give you. A crypto deposit that is later voided or reversed is treated as fraudulent, and any previous, ongoing or future withdrawal requests are then void.
Every deposit must be wagered at least once before it qualifies for a withdrawal, and we cannot approve a withdrawal until a minimum wager of 1X the deposit is met. Deposits made as part of a promotion follow that promotion's own wagering.
We reserve the right to charge a fee of 3% to 6.5% for processing Credit Card deposits, and our banking rules separately state that a 3% processing fee is taken on all deposits.
Verification
To approve a pending withdrawal we ask once, as a standard request, for a copy of your ID or passport front and back, a recent utility bill showing your name and address as they appear in your account, a copy of each credit or debit card used to deposit front and back with all numbers covered except the first four and last four, and a signed Card Authorization Form. If you used an alternative method such as Neteller or Skrill, the ID and the utility bill are enough.
The simplest way to send them is to take digital pictures and email them to [email protected]. Add your name and username, keep the pictures sharp, and once our Finance department has reviewed and approved the documents, your name is added to the next available payment cycle. The documents must reach us within 30 days of your withdrawal request, otherwise the withdrawal is cancelled, and approval depends on every condition and on all required documents being verified.
Beyond that routine check, we may request these documents for fraud prevention purposes or to validate any account, and you cannot play until they have been received and approved. Our fraud controls monitor every transaction, so customers may be asked from time to time for proof of identity, card copies, a signed history of their transactions or other documents, with identity verification itself requested only once.
Verification for deposits or withdrawals can also include clear photo ID, proof of address, credit card copies and purchase declaration forms, and possible criminal or suspicious actions may be reported to the appropriate authority. If you used an e-wallet such as MoneyBookers, Neteller or EcoCard, we may ask for copies of other transactions showing that e-wallet in use.
Every credit card, debit card or e-wallet you deposit with must be registered under the same first name and last name as your account. Our security services check this at withdrawal, and if the names do not match, withdrawal requests are cancelled and the account is closed. We reserve the right to request identity verification documents before processing any financial transaction, and knowingly false or misleading information may lead to forfeited winnings and suspension or closure of the account.
Another version of our terms lets us ask for a Security Verification Form at any time, and if the faxback form and personal identification do not come back within 30 days of the request, the account risks suspension and possible forfeiture, with any account funds resolved at our discretion.
Withdrawal timing and fees
You can submit a withdrawal request at any time. Approval may take up to 18 working days from the date authorization is successfully completed, and a pending withdrawal also needs authorization from our Fraud department. Processing time then varies by method, with wire transfer and BTC taking up to 18 business days, and crypto withdrawals may be quicker but are available only after a crypto deposit.
Other versions of our terms give the approval time as five - eighteen working days and processing as 5 to 18 business days, and mention e-wallet withdrawals in 24 to 48 hours and bank transfers in up to 5 business days. These are separate stages, not a promised total time.
Withdrawals by wire, Neteller, direct-to-card and other methods carry a transfer fee of 10 to 40 $/€/£, set by your location and our payment processor and paid by you, while our general guidance adds that a fee imposed by the payment provider may apply depending on the method and that we do not usually charge withdrawal fees ourselves.
Withdrawal amounts and requests
The minimum withdrawal is 50 €/$/£/AUD or 500 ZAR. Our limits are counted in credits, and 1 Credit equals approximately one euro, pound, dollar or Australian dollar, or 10 ZAR.
Unless otherwise stated, we pay out up to 10,000 credits per month and 1,500 credits per withdrawal, while a separate version of our terms sets weekly limits of 1000 €/$/£/AUD or 10,000 ZAR for verified accounts and 500 €/$/£/AUD or 5000 ZAR before documents are sent and verified, and lets our highest VIP players withdraw up to 10,000 €/$/£/AUD or 100,000 ZAR per 14 day period at management's discretion.
During periods of high withdrawal volume, that version also lets us temporarily reduce weekly limits to 500 €/$/£/AUD, and once your verification documents are accepted the withdrawal joins the queue on the next business day. Neither version waives verification.
Above the monthly threshold we pay in instalments until the full amount is settled, and this threshold does not apply to a progressive jackpot. If you want to withdraw more than 1500, the remainder stays in your account, and once the first withdrawal is approved you can request the rest. You may cancel a withdrawal request at any time while it is still in progress, and these request rules also apply to progressive jackpots.
If you change your mind before it is processed, you can reverse a withdrawal and keep playing with those credits, and reversible withdrawals show up in the cashier when you go to deposit.
Deposits of 249 USD/Euro/GBP/AUS or less carry a maximum withdrawal of 10X the deposit for that play session, with all other currencies pegged to USD. Once a withdrawal is approved, we apply this 10X rule, clear the remaining funds as non-withdrawable and may deduct deposit bonuses used in that session from the pending withdrawal. Any bonus you redeem cannot be cashed out and is removed from your winnings when the withdrawal is processed.
We may refuse or withhold a bonus or winnings at any time if a deposit is cancelled, returned or denied by a payment service or processor.
UK currency and Bitcoin
Under a separate version of our terms, only residents of the United Kingdom may choose the British Pound, and winnings in British Pounds are paid in that currency only to legal UK residents. That version also states that players in the US, Australia and the UK withdraw winnings through Bitcoin only.
For each Bitcoin deposit, start the process in the cashier and send the coins to the address it shows, since the transfer is your responsibility. Under that version we accept no other cryptocurrency, so funds sent as Bitcoin Cash or any other coin cannot be credited. For a Bitcoin withdrawal, enter your BTC wallet address in the cashier, and we pay only to the wallet registered when you make the request. If a payment goes to an incorrect Bitcoin address entered by mistake, we cannot re-issue it.
If you deposit by credit card, that version also requires security form documents before a cash-out, and there may be a wait of up to 7 days before the withdrawal is processed.
Refunds
We offer refunds on deposits when set conditions are met. A request must reach us within 24 hours of the original deposit, after our compliance department has completed and approved the checks required when the account was opened. Qualifying reasons are a game malfunction with a screenshot, credits you were unable to play with the balance still unplayed, and wrong charges supported by a statement. Refund processing carries a fee in your account currency.
| Refund method | Processing fee |
|---|---|
| Paper Check | 55.00 |
| Sepa wire | 20.00 |
| SWIFT wire | 75.00 |
For cryptocurrency deposits under $25 we cannot issue a refund, because transaction fees exceed the minimum refund threshold, so the amount is credited to your balance and treated like any other deposit.
If you haven’t received your refund yet, first check your bank account again. Then contact your credit card company, since a refund can take some time to be officially posted. If you’ve done all this and it still has not arrived, contact our support team.
Another version of our terms treats every deposit as final, with no refund once the deposits have been played at our games. It also requires each deposit to be wagered once before a withdrawal can be requested, and we may charge any processing fees on a withdrawal requested before that wager is complete. When you deposit by debit or credit card, your card company or the card associations may add third-party costs outside our control, including a foreign transaction fee per transaction from the card processing banks, usually a percentage of each foreign currency purchase that sometimes reaches 6 to 8%.
Your account
Account rules and violations
We treat the actions below as violations, and the list is not exhaustive. Consequences may include closing your account, confiscating winnings and existing balances, and refusing services, promotions or other offers.
- More than one account with us, per household, per device or from one IP address, or another account at an affiliated sister casino under the same management.
- A link to a fraudulent, suspended, refunded or previously closed account at any brand in the Rival network or any other online casino.
- An active or past complaint, dispute or criticism on a public forum, blog or any other website.
- Abuse, harassment or threats towards our staff, spoken or written.
- An account name that does not match the card or payment method used to deposit.
- Incorrect or false registration details.
- Playing from a territory or region not fully authorised for online gaming.
- Being below the legal age set by our terms.
- Allowing another person to play on your account, intentionally or not.
- Playing only in a professional capacity or together with players from another club or group, rather than for entertainment.
- Deliberate chargebacks or disputes of deposited funds, or threats of them, here, at a sister casino on the Rival platform or at any other online casino or website.
- Cheating or fraudulent or abusive conduct for an unfair advantage, such as collusion, money laundering, bonus abuse, exchange-rate manipulation, exploiting software bugs or errors, or unauthorised automated systems, in which case we may void bets and withhold or confiscate the winnings and balances gained.
- A link to any current or former employee, company, third party or agency connected to us.
- Any attempt to hack or change our software or website in a way we have not allowed.
Legitimate betting strategies, including stake progression systems such as Martingale, are not cheating under our main terms and bring no penalty unless combined with prohibited automation, manipulation or exploitation, while a separate version of our terms lets us deny winnings and close accounts of players designated as bonus abusers who use no-risk or low-risk strategies to withdraw money, or who systematically employ betting systems to beat the house instead of playing for personal entertainment. That version also lets us act where personal information appears in an industry-wide security database of blacklisted players.
If we learn that a player committed any of these violations at any other web-based casino, we will act accordingly. Where accounts are opened from environments where computers are shared, we may set the limits or conditions we consider appropriate.
Inactivity and closure
Funds left in an account at closure cannot be withdrawn, and this includes all pending withdrawals. If you do not log in for 120 days or more, or go 120 days without a single bet, we are entitled to the remaining balance, and any later request to withdraw it is reviewed case by case with the right to apply the 4 month rule.
Fraud investigations
Another set of our terms lets us request identity documents at any time, before deposits or withdrawals or on suspicion of fraud. Accounts under fraud investigation may be suspended with winnings frozen until the investigation ends, and winnings from credit or debit card deposits can be held for up to 12 months in suspected fraud cases. We may reverse any withdrawal over 30 days old because of missing security documents or incomplete verification.
Winnings from a technical malfunction of the software are voided and removed, while any deposits involved are refunded to your account and can be cashed out for their original amount. Winnings are also voided if your account has had chargebacks or an unauthorized refund, or is linked to accounts with chargebacks in the inter-casino security network.
Where we have reasonable grounds to suspect involvement in collusion, syndication or fraud on our platform, we may suspend the account pending investigation, withhold all or part of the balance, close the account permanently and recover winnings, payouts or bonuses affected by the activities below.
- Collusion, where two or more people seek an unfair advantage through pooling of funds and multiple bonus awards to raise the chance of a large slot payout for one of them.
- Syndication, where a player belongs to a syndicate, club or group that receives advantage play strategies to create positive expectancy from promotional offers.
- Exploitation of a fault, loophole or error in our software or any third-party software used for our services.
- Being found guilty of fraudulent or collusive behavior at another online gaming business, including charge-backs, collusion or criminal activity.
- Charging back or denying transfers, deposits or purchases in a fraudulent manner.
- Use of automated play software such as bots, or simulation tools or systems built for an unfair advantage.
By playing with us you agree to stay out of any collusion scheme involving the sharing of winnings or funds between selected players to benefit from multiple acquisition offers, to tell us if you suspect another player of colluding, and that you are not part of a syndicate or group using advantage play. We investigate every case that may involve fraud, collusion, syndication or illegal activity, and we may inform payment providers, processing companies and other financial institutions of your identity and of any suspected unlawful, fraudulent or improper activity.
Responsible gaming
Setting limits
Our staff are trained to spot compulsive and underage gambling and to act when they do, and you can set your own deposit amount limit. Send our support team a simple written request and we will set a limit on your account. When choosing it, think about how often and how long you play and what amount you are prepared to lose, then set a daily, weekly and monthly limit.
You can opt out of partner and promotional communications by email or post by emailing [email protected], and we remove you from our mailing list on written request.
Breaks and closure
With help from Customer Service you can take a short break from gaming for a period you choose. At any time you can ask support for a break of up to a maximum of six weeks, during which we limit access to your account and to any new account you try to open. Our self-exclusion programme lets you request the cancelling of your membership, and we block the account shortly after the request arrives.
You can also ask our support team to close your account completely, and Customer Service can close your account permanently for personal or responsible gaming reasons.
Help with gambling
Gambling is entertainment only and never a replacement for income, so never bet rent money or money you need for everyday necessities. It is a game of chance, and winning is not guaranteed at any stage. Never chase your losses, and keep a regular eye on what you spend. If you have any concerns about gambling, you can turn to Gamblers Anonymous, Gambling Therapy or the Global Gambling Guidance Group.
Frequently asked questions
What is the minimum and maximum deposit amount?
The minimum deposit is 5 or 10 EUR, or the equivalent in another available currency. The maximum ranges from 200 EUR to 1,000 EUR, both set by the payment method.
How long does a withdrawal take?
Approval may take up to 18 working days from the date authorization is successfully completed. Processing time then varies by method, with wire transfer and BTC taking up to 18 business days.
What is the minimum withdrawal amount?
The minimum withdrawal is 50 €/$/£/AUD or 500 ZAR.
Can I claim multiple bonuses at once?
To play with a promotion, claim it before making a deposit. Once you place a wager of any amount, the bonus has to be played through until your balance reaches zero or the wagering requirement is complete.
What is the wagering requirement?
Every bonus carries a wagering requirement that must be completed before you can withdraw. Each bonus has its own details, such as its wagering, restricted games and other conditions.
How do I set deposit limits?
Send our support team a simple written request and we will set a limit on your account. When choosing it, think about how often and how long you play and what amount you are prepared to lose.
What happens if I haven't logged in for a long time?
If you do not log in for 120 days or more, or go 120 days without a single bet, we are entitled to the remaining balance.
What payment methods do you accept?
We accept payments through Visa and MasterCard credit and debit cards as well as various web wallets and vouchers, and we name MasterCard, Cashlib, Bitcoin and more as easy deposit options.
How do I verify my account?
To approve a pending withdrawal we ask for a copy of your ID or passport front and back, a recent utility bill showing your name and address, a copy of each credit or debit card used to deposit, and a signed Card Authorization Form.
What do I do if I forgot my password?
If you have forgotten your password, use the link on the login screen, and a new password is sent to the email address in your account profile.
Support
Contact options
We provide 24/7 support by phone, live chat and email at [email protected], and our agents are standing by for any question. Press the live chat button to reach our team. We may change our services at any time, including temporary unavailability of customer support or technical support.
Account access
Opening an account takes a few steps. The first time you open our casino, choose fun play or real money, fill in the registration screen and press Register, then log in from the login screen, where your username and, if you like, your password can be remembered. If you have forgotten your password, use the link on the login screen, and a new password is sent to the email address in your account profile.
We will never ask you for your password by email or over the phone, so contact our support team straight away if anyone does.
Complaints
Send any complaint, grievance or dispute in writing within 5 days of the event. Complaints that arrive later may not be addressed, although in extenuating circumstances, such as a player being incapacitated or otherwise unavailable, we review each case individually while keeping the right to apply the five-day rule. Report other technical faults in writing and include a screenshot so we can verify them, while problems caused by your own internet connection, computer software or hardware remain your responsibility.
Operator and eligibility
Age and account conditions
Our general terms require every player to be 25 years of age or older, with the age restriction subject to local national law, and they take precedence over the rule in our player and responsible gaming policies that sets the minimum at 18 years of age or the age of legal consent in your jurisdiction. We may ask for age verification at any time.
Our terms supersede and overwrite any other terms we offer, and if any clause is found void, invalid or unenforceable, the rest stays in full force. We bear no liability for your legal right to play for real money, and it is your own responsibility to check the local law and abide by it. We operate under the trade name WinBig 21, and that name, together with our graphics and text, is not available for players to use.
Licensing jurisdiction
Our casino is registered, licensed and regulated by the Government of Curacao for operating an online casino, and it is owned and operated by an incorporated corporation licensed and regulated there. Curacao is the licensing jurisdiction we operate under.