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What are the best online casino bonuses of 2021?

Whether you prefer playing casino in euros or with cryptocurrencies (Bitcoin, Ethereum, Litecoin…), Madness Bonus has a lot of online casino bonuses to offer. We made a selection of 5 of our best casino bonuses just for you.

#1 – Cresus: 150% up to €300 + 500 free spins

Cresus is one of the best online casino you can find, for various reasons. It has a great games library, with a quick new slot machines integration every Thursday at 9 a.m., a lot of weekly promotions, and a nice €2,500 weekly withdrawing limit.


In terms of welcome promotion, Cresus offers a 150% up to €300 bonus (wager free). You will also be rewarded with 500 free spins on Yggrasil’s Multifly if you deposit at least €50.

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#2 – Wild Sultan: 100% up to €500 + 20 free spins

It’s been a few months now that have added Wild Sultan as one of our partner casino. It has most of the best providers, and non-sticky bonuses. Something really nice about this casino is it’s amazing withdrawing limit of €5,000 per week, and €20,000 per month.


When it comes to welcome promotion, Wild Sultan is not in rest. You can enjoy a nice 100% up to €500 bonus, paired with 20 free spins. As soon as you register on this casino, you are eligible to a daily 4 x €25 giveaway.

Wild Sultanwww.wildsultan.com
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#3 – Stake: 100% up to €1,000

Next comes a Bitcoin and cryptocurrencies online casino that has been growing like crazy the past few months: Stake. With its huge games library, the fact that you can deposit using your credit card or crypto wallet, and its bonus with no conditions (except wager), we can understand why it became so popular.


Talking about casino bonus, Stake and Madness Bonus offer you a 100% up to €1,000 bonus. Contact us on Twitter before you deposit (@MadnessSupport) and we will explain you how to activate it. This bonus comes with a 30x wager, but it has no conditions. You can bet as high as you want, on the games of your choice, even on Live casino games.

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#4 – Celsius casino: 100% up to €300

Next comes another cryptocurrencies casino: Celsius. We added this casino on Madness Bonus a few months ago, and our community members enjoy playing on this one for various reasons. One of them being its triple welcome bonus. Other reasons are its original games, its instant rakeback functionality, and the tournaments it regularly hosts for its players.


On your first deposit, you get a 100% up to €300 welcome bonus (wager x40). On your second deposit, you get a 200% bonus up to €200 (wager x45). Then, for your third deposit, you get a 300% bonus up to €150 (wager x50). For these three bonuses, your max allowed bet is €5 per spin.

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#5 – Prince Ali: 100% up to €1,000

Founded in 2020, this online casino quickly found a place in the heart of the gamblers thanks to a very appealing welcome bonus (we will come back on this later), and a maximum allowed bet of €8 (vs €5 on most casinos) when playing with an active bonus. On this casino, you can withdraw up to €2,500 per week, and €10,000 per month. Not bad, right?


Enjoy a 100% up to €1,000 welcome bonus, with no wagering requirement (except a €8 max bet). If you manage to boost your balance enough, just cancel your bonus balance and withdraw. What’s nice about this welcome bonus is that it’s available on your first three deposits.

Prince Aliwww.princeali.casino
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The best casino bonuses are here

Are you ready to discover some of the best casino bonuses there is? Whether you like to play on Euro or crypto casinos, we have amazing welcome offers just for you.

Discover them, and start playing straight away!

Bonus 150%
Max Bonus 300€
Wager -
Min Deposit 20€
Special Offer
Wild Sultan
Bonus 100%
Max Bonus 500€
Wager Non sticky
Min Deposit 20€
Special Offer
Bonus 100%
Max Bonus 1000€
Wager x30
Min Deposit 5€
Special Offer
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