Check out our expert guide to the best bonuses in online casinos in 2023 – then instantly claim the best casino bonuses at our recommended sites…..


Our expert Yggdrasil Casino team is constantly reviewing online casinos, to bring you the sites with the best bonus offers 2023 for new players – while ensuring our recommended casinos also offer you some of the best bonuses and games for existing players. You can instantly claim the best bonuses at the casinos below – or claim your bonus after you’ve read our best bonus casino reviews:

🥇 Best Slot Site:LeoVegas
🔝Top New Slot Site:Casino Lab
🤑 Jackpot Slots Website:Casumo
💸 Highest Payout Slot Site:Videoslots
🎁 Best Slots Bonus Site:Mega Casino
⚖️ Low Wagering Slot Site:Mr. Green
🚫 No Wagering Slot Site:PlayOJO

Summary: Best Casino Bonuses 2023

100% up to €1000/ £100

+ 300 free spins on Starburst

18+ Full T&C’s Apply. New players Only. £10 min deposit. £5 max bet using bonus. 40x wagering applies. Bonus valid for 14 days. 30 Spins will be credited instantly upon qualifying deposit + then 30 per day for 9 days on Starburst. Free Spins valid for 72 hours from credit. Max Free Spins winnings £100. Ewallets excluded. –

50 Spins on Starburst

ROW: 100% bonus up to €500 + 20 free spins!

18+. New depositors only. UK residents only. Minimum deposit £10. Free Spins are valid only on Starburst and expire in 7 days. 10x wagering apply. Certain deposit types are excluded. T&Cs apply.

UK: 100% bonus up to £25 - ROW: up to 300€

20 Bonus Spins

18+. New UK customers only. Opt-in required. 20 Bonus Spins on “Book of Dead” and 100% Deposit Bonus up to £25 on first deposit. Min deposit £10. 30x wagering requirement for Bonus Spins and 30x wagering requirement for Deposit Bonus (game weighting applies). Max £5/spin or £0.50/line or £10/round (live casino). 30 days expiry. T&C’s Apply. Please gamble responsibly •• • Bonus terms

100% bonus

+ 50 Free Spins on Book of Dead

The 50 Free Spins will be distributed over the course of 5 days (10 per day for the following 5 days after you claim your Welcome Bonus). You will find 10 fresh Free Spins on a different game every day from 12:00 CEST in your account in the Rewards Section. Simply log in and claim them within 24 hours for your extra chances of winning.


Probably the most popular promotion available to casino players, is the ‘welcome bonuses’ for new players – which feature some of the best bonus rewards. Simply put, the best welcome bonuses offer new players the chance to receive a reward, usually activated when a player makes their first deposit. As an example of a mid-range bonus, if you sign-up to Genting Casino using our secure link and deposit at least £20, you’ll receive a 100% deposit bonus up to a maximum of £200. Many of the best bonuses also feature free spin bonuses, such as  Genesis Casino, which in addition to a 100% match up to €100, also gives you a 300 free spin bonus.


Claiming the best bonuses at casinos and slot sites, is easy – you simply need to find the top bonuses, sign-up to the casinos and trigger the bonus by meeting the site’s requirements (e.g. usually make a deposit of a certain size). However, with new casinos being released regularly in 2023, keeping up-to-date with the best bonus offers can be a hassle – which is where our on-trend casino bonus analysis will help you out.

Most common types of bonus offers for casino players:

  • Deposit welcome bonuses: Bonuses that reward you for making your first deposit.
  • Free Spin bonuses: Free spins given for signing-up or making a deposit.
  • No-Deposit bonuses: Free bonus cash given just for registering.
  • Re-deposit bonuses: Repeat bonuses typically on deposits 2-3.

Our recommended slot sites let you easily claim the best bonuses from high-quality online casinos. You can trust our secure links to lead you to the best casino bonus offers where you can instantly sign-up and claim the best bonuses. 

Gentingbet Bonus


While it’s often true that the best casino bonuses, are for new players, there are some nice bonus offers claimable for both new and existing players:

Best Bonuses for New Players

If you’re new to a casino, then there’s a high probability that you’ll qualify for a lucrative welcome bonus.

The best bonuses reward you for signing-up, with incentives including deposit match bonuses, re-deposit bonuses, and free spins. Depending on the casino and specific promotion, new players can claim the best bonuses instantly, by either entering the required bonus code, clicking to accept a bonus offer, or by making a first deposit. When you want to claim a bonus – make sure you follow the correct steps needed to activate the reward. 

Best Bonuses for Existing Players

If you select a high-quality online casino, then you can look forward to regular bonus offers, including deposit bonuses, free spins and special promotions on hot games. Our recommended casinos, offer opt-in features that let you receive the best bonus offers via email and SMS – meaning you’ll never miss out on trending bonuses. If you have several good casinos to choose from, then you can switch between them, when the best bonuses become available.


Many of the best bonus offers in casinos, are deposit match bonuses, such as: ‘Deposit €10-100 and get a 100% match.’ With deposit bonus offers, you get to choose your bonus size. In this example, depositing the minimum of €10, would boost your deposit to a total of €20. But if you made the maximum deposit of €100, your total would be increased to €200. Some casinos offering the best bonuses, also offer one or more re-deposit bonuses, which can be used after your first deposit bonus. How much bonus to choose, is down to your budget, gaming experience and how much you are happy to risk. You can only claim a deposit bonus once, so pick wisely. 


Wheel of Fortune 888 Casino PromotionNo bonus offer guarantees you will win any cash from the promotion – but with some luck, you have a fair chance of coming away with some winnings. The total amount that you can win is dependent on the total value of the bonus, the maximum win cap, and the all important element of random luck:

Bonus value

The value of your bonus can affect the amount you could win. For example, if you get a €100 bonus, then you can play more rounds, than you would with a €20 bonus, which might increase the amount of leverage you have to bank some winnings. Some bonus offers require you to play-through the bonus and deposit through a wager-requirement (e.g. x35), while others only require you to play with the bonus cash, which can impact the chances of making the bonus profitable.

Maximum total win amount

Some bonus offers put a limit on the maximum amount a player can win from a bonus – such as €500,  or €1000, while others are unlimited. Progressive jackpot games are usually exempt from any bonus caps – meaning if really lucky, players could land a big progressive jackpot using bonus money.

Random chance

Unsurprisingly, random chance is a significant factor that affects whether you end-up with any withdrawable winnings from a bonus offer. There are no guarantees – so consider how much of a bonus offer you wish to claim, in terms of your triggering deposit (if required). 


Claiming the best bonus offers from high-class online casinos, offers you the chance to play a free session and potentially win some cash winnings, using the house’s cash. However, before you dive in and start claiming the best bonuses – get familiar with the potential pro’s and con’s of casino bonus offers: 

Best Bonus Pro’s

Selecting the best bonuses at our recommended casinos, will give you a fair chance of using free bonus cash and any free spins, to try and gain some winnings. The best bonuses have several pro’s, which usually make them worth claiming, if you’re already wanting to play some casino sessions. Most bonus promotions can be claimed by new players, with a small minimum deposit, but also offer experienced players the option of taking advantage of much higher-value deposit bonuses (e.g. a 100% match bonus from €10 to €300 offers a lot of flexibility for your budget). With some luck, the best bonus casinos give you a fair chance of gaining some winnings.

Best Bonus Pro’sBest Bonus Con’s
Free bonus cash
Flexible deposit bonuses
Win normal game payouts
Win progressive jackpots
Test-play casinos
 Max bonus win cap (e.g. 1000.00)
Play-through terms (e.g. x30)


Best Bonus Con’s

Casino bonuses are often worth claiming, but there’s no guarantee of winning, so it’s worth being aware of any con’s attached to the best bonus offers. If you’re looking for a deposit bonus, it’s worth thinking about your budget and selecting the offer that matches you best. For inexperienced players, you can select small bonuses that have minimum deposits of €10-20. For players with more experience and bigger budgets, you’ll find the best bonuses can reward you with €100-200 or more – especially if the casino offers re-deposit bonuses. It’s also worth looking at the terms and conditions of the best bonuses, including the wager-requirement (e.g. play deposit and/or winnings through a certain value of bets such as x35 before you can withdraw) and any bonus winnings cap (e.g. max winning of €1000).

Tip: When using the best bonuses, play-through your cash to meet the wager-requirement, on games with a 100% bonus value; typically slots tend to have a 100% value, but table games and selected games may be significantly lower! We recommend scanning the bonus terms on the casino site if you’re unsure, or load-up live chat to check with the support team.


Another option for bonus lovers, is to play video slots and casino games that have the best bonus features. All of our recommended casinos are packed with hundreds of games that contain exciting and potentially rewarding bonuses – including a top selection of Yggdrasil slots, such as Vikings Go Berzerk. Valley of The Gods slots, and Age of Asgard. Yggdrasil games contain a diverse range of features, but a game like Neon Rush illustrates the power of the best bonuses that you can look forward to triggering by landing the best bonus symbols on the reels. The slot has a Splitz™ symbols bonus, where the symbols burst to reveal x5 of the same symbols, including Jackpot icons which can send payouts rocketing. The other bonus features include up to 30 Free Spins, and the Jackpot Feature where 10x Splitz™ symbols payout x 25,000 the triggering bet!


  • How can I find the best bonus offers? Arrow

    There are now hundreds of online casinos, with new sites regularly being released. Searching the web can help you find some good casino bonus offers, but it's time consuming. At Yggdrasil Casino, our team use expert analysis, to review all the latest offers – to bring you the best bonuses to claim instantly.

  • How do the best bonus offers in casinos work? Arrow

    The best bonus offers in casinos are usually welcome bonuses, claimable by players who are new to a casino site. You can claim the best bonus offers, by creating a free account at your selected casino and meeting the bonus offer's terms and conditions; usually, you need to make a deposit, and will then be given a reward, such as a 100% deposit match bonus (e.g. deposit 100 and get 100 free bonus). You may also receive free spins as part of the bonus. You can then use the bonus on selected games to try and win some real money winnings.

  • What are bonus wagering requirements? Arrow

    When you claim a casino bonus, you will usually need to play your deposit and/or bonus cash, through a 'wagering requirement'. This is a term and condition, which means you need to play the money through a certain value of bets, such as x40 (e.g. 10.00 x 40 = 400). Once you have met the wager requirement, you can transfer any winnings to your real money account, where you can use it to bet, or withdraw it.

  • Are the best casino bonus offers worth claiming? Arrow

    If you are intending on playing some casino sessions with real money, then claiming the best bonus offers, gives you the chance to extend your gaming, while playing with the casino's cash. If you get some luck, then you can come away with some extra winnings. If you aren't successful with your bonus, then you will only have spent the money you were happy to spend having fun (It's therefore important to consider how much you want to deposit and spend on entertainment).

  • Can I Claim Bonuses on Mobile? Arrow

    Almost all the best bonus offers can be claimed on your mobile. However, it's always worth double-checking with the live chat team at your chosen casino, or via the bonus terms & conditions page. Our expert casino reviews and bonus links, will lead you to sites where the bonus offers can be claimed via mobile.

  • How much can I win with the best bonus offers? Arrow

    The maximum amount you can win the the best bonus offers in casinos, varies on the specific terms and conditions of each bonus. Typically, there will be a maximum bet size that can be used during the bonus, with the maximum total win capped at a good level – often several hundred or thousand euros (or currency equivalent). Most of the best bonuses, exclude progressive jackpots from the maximum win – meaning huge wins are possible for very lucky players! 

  • How to claim the best bonus offers in casinos? Arrow

    You can claim the best bonuses, by signing-up to the casino running the promotion, and meeting the required action needed to activate the bonus. Some bonuses need you to enter a bonus code such as 'BONUS20', while other need you to click to accept the bonus offer, or to simply make a deposit. Make sure you meet any deposit requirements, such as depositing a certain amount on your first deposit to trigger the bonus offer. Our casino reviews will help you find the best bonus offers and claim them easily.

  • What are the best bonus strategies? Arrow

    There are no real strategies to boost your luck when playing the best bonuses in online casinos, since they rely on random luck. However, it's advisable to deposit the amount you are comfortable with, rather than thinking you need to claim the full bonus amount, which can be high at some casinos. When it comes to the games to play to meet any wagering requirements, we recommend playing games with a very high (preferably 100%) play-through value (tip - check a casino's bonus terms to find the top games!).

  • Are the best bonus offers fair and safe? Arrow

    Most regulated online casino offer fair and safe bonuses. You can select our recommended casino sites, to ensure you only play at casinos that offer the best bonuses, in terms of player fairness – including higher RPT levels and bonus terms that give you a fair chance of winning some money with a bit of luck.


Selecting the best bonuses in online casinos will help you get off to the perfect start at a new casino. And whether you end-up with some withdrawable winnings, or the bonus doesn’t come-up trumps – you’ll still get a fun gaming session courtesy of using the casino’s own funds. Once you’ve used the bonus cash, you can make a decision whether to stick the casino in your favourites, or give it a pass. At Yggdrasil Casino, our expert casino reviewers, will keep on analysing the top casinos, to bring you the best bonuses, bonus codes, and secure links to instantly claim the best bonus rewards.