400% Casino Bonuses in 2024

A 400% casino bonus matches your first deposit by 400%, so if you deposit 100€, you get 400€ extra, totaling 500€ to play. This sign-up offer helps new players try out games with less risk, allowing them to explore the casino.
In this article, our experts selected top casinos based on their licenses, secure payments, and effective customer service.

Best 400% Deposit Bonus Casinos


When you join MrBet, you can enjoy a welcome bonus of up to 400% extra on your first four deposits. The platform offers cashback deals, free spins on slot games, and exciting tournaments.


Bonuses and promotions

MrBet offers great bonuses and promotions for both new and regular players. Signing up can give you a 400% bonus on your first four deposits. They also have cashback deals, free spins, and a fun Battle of Spins Tournament.

400% Bonus

MrBet casino offers up to 1500 EUR throughout the first 4 deposits. These are the specific amounts you can get:

150% bonus up to € 150 on first deposit

  • Players can get a bonus worth 150% of the amount they refill (max. bonus amount – € 150).
  • Bonus is accrued with 45x wagering requirements.

100% bonus up to € 300 on second deposit

  • Players can get a bonus worth 100% of the amount they refill (max. bonus amount – € 300).
  • Bonus is accrued with 40x wagering requirements.

50% bonus up to € 500 on third deposit

  • Players can get a bonus worth 50% of the amount of their refill (max. bonus amount – € 500).
  • Bonus is accrued with 40x wagering requirements.

100% bonus up to € 550 on fourth deposit

  • Players can get a bonus worth 100% of the amount you refill (max. bonus amount – € 550).
  • Bonus is accrued with 40x wagering requirements.
5% cashback

MrBet gives players back 5% of the money they spend over €500 a week, automatically adding it to their game account, so you don’t have to do anything. This way, players can keep having fun without worrying about losses.

Free spins

Players can get free spins for slot games, but they must bet with real money to win actual cash. Winnings from the spins are given as bonus funds. Each free spin can be used only one time. The spins are good for 2 to 10 days and will expire if not used within that time.

Battle of Spins Tournament bonuses

The more spins players make and the higher they bet, the better their chances of winning. You can join slot tournaments to win prizes like money or free spins. The casino requires one to play in a qualifying game and bet the minimum necessary. So, players need to check the rules before playing. You must rank high on the leaderboard by spinning often and betting big to win.

Payment Options

MrBet offers many payment methods for deposits and withdrawals. You might be charged a fee for some deposit methods, and the amount you can deposit varies. You need to log in to see the exact limits.

Usually, you can deposit at least €10 and withdraw at least €20, but this can change based on where you live. You must prove your identity to take money out. If you try to withdraw more than €2000, the casino might recheck your details.

Withdrawals are usually processed within a day, but not on weekends or holidays.

You can take out up to €5000 weekly or €15000 monthly. If you win over €50000, the casino may pay you in parts.

Safety & Customer Support

Mr.Bet Casino holds a Curacao license, and it’s considered safe.

Their customer support is accessible around the clock for any pertinent concerns. The casino offers a 24/7 live chat in multiple languages to ensure prompt assistance.

For all casino-related inquiries, you can engage with the live chat feature. At first, an automated chatbot will attempt to resolve your issues, but you can speak with a live chat representative whenever you choose.


BetRocker offers a variety of bonuses and promotions, including a welcome offer, second and third deposit bonuses, live casino cashback, and rewards for top players. The platform is also committed to customer service and security.


Bonuses And Promotions

Here are the main bonuses and promotions players can get at BetRocker casino platform.

Welcome Offer

On your first deposit, you can claim 400% game bonus – a welcome bonus of up to €500. Players have three bonuses, each available within a specific deposit amount range.

Crazy Bonus: 400% up to €80

  • Minimal Deposit: €10
  • Wagering: X50

Standard Bonus 200% up to €100

  • Minimal Deposit: €20
  • Wagering: X40

Highroller Bonus 100% up to €500

  • Minimal deposit: €50
  • Wagering: X30
2nd Deposit Bonus

Players can get 100% 2nd Deposit Bonus up to €200. If you deposit the minimum €10, you will have €20 to play with in bonus slots.

If you deposit the maximum €200, you will have €400 to play with in bonus slots.

Bonus and deposit must be wagered at x40 in any BONUS GAME slot.

3rd Deposit Bonus

Players get the 70% 3rd Deposit Bonus up to €700. If you deposit the minimum €10, you will have €17 to play with in bonus slots.

If you deposit the maximum of €1000, you will have €1700 to play with in bonus slots.

Your bonus and deposit must be wagered at x40 in any BONUS GAME slot.

Live Casino Cashback

Players can get 10% Cashback off their All Live Casino Games losses. Cashback is paid in real money with no wagering requirements attached.

€3000 in cash for top 50 players

Top players can play and generate points on the leaderboard and might finish the week among 50 winners. The first-place winner each week receives a prize of 700 euros.

Loyalty Program

VIP players earn loyalty coins, which can be exchanged for cash. Loyalty coins determine your loyalty level:

  • New level (less than 1 coin)
  • Bronze level (1-500 coin)
  • Silver level(500-3000 coin)
  • Gold level(3000-20 000 coin)
  • Diamond level(20 000 and more coins)
Refer a Friend

The Refer a Friend program pays a 1% (one percent) commission from real money stakes made by referred players.

Payment Methods

Depositing and withdrawing money at BetRocker Casino is easy. You have a range of currencies to choose from, including EUR, USD, CAD, AUD, NZD, PLN, NOK, SEK, BRL, and ARS. You can pick from bank transfers, several e-wallet options, or prepaid cards for your transactions.

Customer Service and Safety

If you need help, you can contact the casino’s support team. Use the daily live chat from 5 AM to 9 PM (GMT) for fast assistance. You can also email the casino for more help.

BetRocker casino prioritizes security by using strong encryption to protect personal and financial details from unauthorized access. Additionally, they use a random number generator to guarantee that game outcomes are always fair and random.

FAQ about 400% Deposit Bonus Casinos
Why choose a 400% casino deposit?

Quadrupling the amount you have to make bets with seems like a good enough reason on its own. If the casino breaks the bonus up in three, then you can prolong the bonus experience even longer. It also means that you can win much more without the risks involved in wagering your own money. It’s not often that a casino is so generous, so you should take advantage of it.

How can you find 400% casino bonuses?

Take a look at some of the casinos in this review to find 400% bonus casinos. Each of the casinos has been tested according to the rigorous list of criteria that our experts use to ensure that you are safe and have fun. It is rare in the UK to get 400% bonus offers, due to bonus taxes that the casino has to pay. Some newer casinos use this offer to attract players, but some older casinos also offer the bonus.

Who can claim a 400% casino bonus?

Anyone who is of legal gambling age can sign up with the casino and access the 400% bonus. The bonus will be limited to one computer or IP address. The casinos do not discriminate against anyone who wants to sign up to claim the welcome offer.

Remember that some casinos have a minimum deposit that you must make to qualify for the bonus, and you have to follow the terms and conditions, such as the betting requirements, to be able to withdraw any winnings.

Why do casinos offer 400% bonuses?

An online casino offers sign-up bonuses to allow new players to get to know the casino. The sign-up offer will enable you to browse through the casino games and place bets with no risk. A 400% bonus is a lovely bonus which few people will be able to pass up. This way, the casino can get many new players that open accounts.

Can I get a 400 percent bonus and keep my winnings?

Almost all deposit bonuses have betting requirements you need to meet before you can withdraw your winnings. Betting refers to the total amount (or number of times) you must bet the bonus money (or your deposit plus the bonus amount, depending on the offer) before it becomes withdrawable cash. These requirements can range from as low as 10x to as high as 99x the bonus amount. Once you’ve met the betting requirement, you can keep any winnings you’ve earned using the bonus money.

Increase Your Chances to Win With a 400% Deposit Bonus

Casinos and bonuses may have different terms and conditions affecting your gameplay and outcomes.


Here are some general tips that might help you to win:

  • Low wagering requirements. Choose a casino and a bonus that has low wagering requirements and high game contribution. This means that you will have to bet less money before withdrawing your bonus and winnings, and more of your bets will count toward the wagering.
  • High return to player (RTP). Play games that have a high return to player percentage. The games will pay back more money you bet in the long run, reducing the house edge. You can find the RTP of each game in the game rules or paytable or by searching online.
  • Use strategies. Use a basic strategy when playing games that involve skill or decision-making. Follow a set of rules or guidelines that tell you the best action to take in each situation based on mathematical calculations.
  • Set a budget and stick to it. Decide how much money you are willing to spend on gambling and how much you are willing to lose. You should never bet more than you can afford to lose and stop playing when you reach your limit. This way, you can avoid losing more money than planned and keep your gambling fun and responsible.
  • Know when to quit. You should set a goal for how much you want to win and stop playing when you reach it. You should also cash out your winnings as soon as possible and not use them to gamble more. This way, you can enjoy your profits and not risk losing them back to the casino.

These are some of the tips that might help you increase your chances of winning. However, remember that gambling is always a game of chance and there is no guarantee that you will win. You should always gamble responsibly and only for fun, not as a way to make money.

How Do We Check 400% Deposit Bonus Casinos?

Casinos know that the welcome bonus is a crucial part of the casino’s success, so a 400% deposit bonus is offered to attract new players. Still, not many casinos offer such a bonus. Below is the list of criteria our experts used to compile the list of the above-mentioned casinos.

Licensing and Regulation

The casino is usually licensed with the Gibraltar Gaming Commission, Malta Gaming Authority, or the UK Gaming Commission. The online casino must have the license number and body that issued the license published on the site. Lastly, the operator must be regulated by a third party to ensure fairness towards the player.

Fairness Testing and Security

The 400% bonus casino should be a third-party fairness testing lab member. This lab ensures that the Random Number Generator is indeed random and that the volatility is correct. Often, the casino itself isn’t registered because the game developers are. You can look for a registration number on the casino website.

Also, the casino must have up-to-date security and SSL encryption. The safety and encryption ensure that the sensitive information you share with the casino is confidential.

Customer Service

The casinos that we offer have multiple channels to address your concerns. Keep in mind that live chat is the best method for instant assistance.

Payment Methods

Payments must be secure and comfortable, and withdrawals must be paid quickly. Player reviews provide insight into these aspects and can be very valuable when testing a casino and choosing the best casino for your needs.

Advantages and Disadvantages of 400% Casino Bonus

As with all promotions, the 400% casino bonus has positive and negative aspects.


Here are 400% Casino bonus pros and cons:


  • Boosting your bankroll. It allows you to play with more money than you deposited. This means that you can place bigger bets, play longer, and have more chances to win.
  • Trying out. You can try out the casino’s different games and features without risking too much of your own money. For example, you can play slots, table games, live dealer games, bingo, and more.
  • Winning big. You have an opportunity to win big with a small deposit. For example, if you play a progressive jackpot slot with a 400 casino bonus, you might have a chance to win millions of pounds with just a £10 deposit. Of course, this is not very likely, but it is possible.
  • Experimenting. You get more fun and excitement from your gambling experience, as you can enjoy playing with a large amount of bonus money and see how it grows or shrinks as you play.


  • Betting requirements. You must meet certain betting requirements before withdrawing your bonus and winnings. For example, if the betting requirement is 35x and you get a £40 bonus, you have to wager £1,400 before cashing out. The higher the wagering requirement, the harder it is for you to clear the bonus.
  • Game contribution. You have to consider the game contribution of different games towards the wagering requirement. This means that not all games count equally towards the wagering.

For example, if slots contribute 100% and roulette contributes 10%, then every £1 you bet on slots will reduce the wagering by £1, but every £1 you bet on roulette will reduce it by £0.1012. The lower the game contribution, the harder it is for you to clear the bonus.

  • Limited time. This means you have a certain period to use your bonus and meet the wagering requirement. For example, if the time limit is 30 days, you must complete the wagering within 30 days, or your bonus and winnings will expire. The shorter the time limit, the harder it is to clear the bonus.

Terms and Conditions of Casino Bonus 400%

One of the most important steps to remember before signing up for the casino 400% bonus is looking through the terms and conditions. Usually, the terms and conditions state the betting requirements and the validity period; also, the bonus is typically valid for 30 days after making your first deposit. Below we have a list of things you might want to keep your eye on while reading the terms and conditions of the chosen casino:

Multiple Deposit

Some casinos require multiple deposits to qualify for the full 400% welcome bonus. Other casinos have it as a once-off. The amount that you have to deposit is stated in the terms and conditions. Some casinos can also put a limit on the maximum amount that they will match with 400%.

Betting Requirements

Pay attention to the list of games that count towards the betting requirements and minimum and maximum bets that you can place. Usually, slots will count 100% towards the requirements, while other games might have lower percentages.

When you bet with your 400% casino deposit bonus, you must never exceed the wagering requirements; instead, you can place a range of smaller bets to make up the betting requirements. You can only withdraw your winnings once you have met the wagering requirements. Remember that you can’t remove the 400% casino bonus as a cash amount; you can only access your winnings.

FAQ or Customer Service

Make sure that you read through the terms and conditions. You must understand each point before you start placing bets. If something is unclear, you can look at the casino’s FAQ section, where similar questions might already be answered.

Alternatively, don’t hesitate to contact customer care, who will be able to answer any questions you have regarding the 400% first deposit bonus. Following the terms and conditions prevents you from losing money.

Benefits of Claiming a 400% Deposit Bonus

A 400% casino bonus offers more than just a bankroll boost. It transforms your gaming journey, opening doors to exploration, strategy, and engagement.


Here’s how this bonus can elevate your best online casinos experience:

Flexibility: The enhanced bankroll allows you to diversify your bets, meaning you can simultaneously play low-risk and high-risk games, adjusting your strategy based on the outcome.

Motivation: The increased funds can motivate players to learn the nuances of different games, potentially improving their overall gaming strategy and expertise.

Casino Community: A boosted bankroll can provide players the confidence to participate more in casino forums, chat rooms, or tournaments, fostering a sense of community and camaraderie.

Higher Status: Some casinos have tiered loyalty programs. The increased activity, courtesy of the larger bankroll, might elevate a player’s status faster, unlocking more perks and benefits.

Bonuses & Promotions: Playing more games and spending more time on the platform may increase the likelihood of encountering in-game bonuses, promotions, or special events.

Satisfaction: Playing with higher stakes courtesy of the casino’s money can add an extra layer of excitement and adrenaline to the gambling experience.

Other Promotions

Once you have signed up with a casino 400% bonus, ensure you also know the other promotions the casino offers.


You can use various promotions, depending on the casino, for example, the ‘refer a friend’ promotion, free spins, odds boosters, and many more, including:

  • Other welcome bonuses: These are bonuses that you get when you sign up for a new account at an online casino.
  • No deposit bonuses: These are bonuses you get without having to deposit. They are usually smaller than welcome bonuses, but they allow you to try the casino games for free.
  • Monthly bonuses and promotions: These are bonuses and promotions that online casinos offer regularly, usually every month.
  • High roller bonuses: These are bonuses that online casinos offer to players who make large deposits or bets. They usually have higher percentages and amounts than regular bonuses but have higher wagering requirements.
  • Game-specific bonuses: These are bonuses that online casinos offer for playing specific games or categories.
  • Mobile bonuses: These are bonuses that online casinos offer for playing on mobile devices, such as smartphones or tablets. They can include exclusive offers, extra rewards, or access to special games.

The promotions are not available just to new players because casinos offer many promotions and offers after you have signed up. Most importantly, join the VIP or loyalty program for more deals and possibilities.


Players can enjoy various games with bonuses and promotions by carefully selecting casinos with solid licenses, secure payments, and effective customer service. Casinos like MrBet, CasinoWinBig, and BetRocker provide generous welcome bonuses and offer cashback deals, free spins, and tournaments to enhance the gaming experience. Players need to understand the terms and conditions associated with these bonuses, including wagering requirements and game contributions, to benefit from the opportunities these bonuses offer fully.

Gamble Responsibly

Responsible gambling is a term used to describe the practice of gambling in a way that is safe and enjoyable. It is important to be aware of the risks associated with gambling and to set limits for yourself. You should never gamble more money than you can afford to lose, and you should take breaks if you are feeling overwhelmed. If you are concerned about your gambling habits, there are resources available to help you.

Zigmas Pekarskas

Written by:

Casino card games and poker expert

Founder and CEO of SmartCasinoGuide.com also well known poker professional player, with more then 15 years of playing poker and other card games. 10 years of writing articles, doing reviews of poker rooms and teaching other poker players how to improve their game.

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