May's most popular casino bonuses

Based on the number of visits received by each gaming site in April, here is the list of the 21 most popular online casinos listed at CasinoBonusCenter.com

"Guns N' Roses Video Slots" brought to you by NetEnt

100% up to

€200

+ 50 free spins

With your first deposit

TornadoBet

Explore the thrill of sports and casino gaming with a €500 welcome package! More about TornadoBet

✓ A 100% bonus up to €200 + 50 free spins with your first deposit
✓ Games developed by iSoftBet, Yggdrasil Gaming, Pragmatic Play and others

lucky spin

No deposit required

888Casino

Up to $1000 in bonus with your first deposit More about 888Casino

✓ 1 lucky spin · No deposit required
✓ A 100% bonus up to $1,000 extra with your first deposit

100% up to

$200

Sign-up bonus

With your first deposit

EnergyCasino

Enjoy 30 free spins plus a $400 welcome package More about EnergyCasino

✓ A 100% bonus up to $200 extra with your first deposit
✓ Games developed by Novomatic, Microgaming, Evolution Gaming and others

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Spin Casino

Unveil your perfect Welcome Bonus: Free spins, Massive cash bonuses, or 100 chances to win a Millionaire Jackpot

Sign-up Bonus:

free spins

No deposit required

Spin Casino

Unveil your perfect Welcome Bonus: Free spins, Massive cash bonuses, or 100 chances to win a Millionaire Jackpot

50 free spins No deposit required (New customers)
✓ A 100% bonus up to $400 with your first deposit (New customers)
✓ Bonus available on your second purchase
✓ Bonus available on your third deposit
✓ Play directly in your browser – No software installation needed
✓ Downloadable games are also available
✓ Games for mobile devices · Play casino games on your smartphone or tablet
Live casino · Play against real croupiers at Spin Casino
Over $20,702,875 in Microgaming Jackpots
Tested and certified by Casino Bonus Center
Popularity: This offer has been claimed by 71 visitors so far this month.

Software: Microgaming, NetEnt, OnAir Entertainment, Pragmatic Play, Red Tiger, Ezugi and Evolution Gaming

Explore bonuses at Spin Casino

Unique Casino

Exclusive bonuses · 25 free spins + $500 bonus + 100 free spins on first deposit!

Sign-up Bonus:

free spins

No deposit required

Unique Casino

Exclusive bonuses · 25 free spins + $500 bonus + 100 free spins on first deposit!

25 free spins No deposit required (New customers)
✓ A 200% bonus up to $500 + 100 free spins with your first deposit (New customers)
✓ Bonus available on your second purchase
✓ Bonus available on your third deposit
✓ Play directly in your browser – No software installation needed
✓ Games for mobile devices · Play casino games on your smartphone or tablet
Live casino · Play against real croupiers at Unique Casino
Tested and certified by Casino Bonus Center
Popularity: This offer has been claimed by 71 visitors so far this month.

Software: Playson, LuckyStreak, Red Rake, Triple Cherry, Kalamba Games, Arrows Edge, Reevo, Belatra Games, NetEnt, Endorphina, Evolution Gaming, Tom Horn, Playtech, StakeLogic, Spinomenal, Fugaso, Play n GO, Gaming Corps, VIVO Gaming, Mascot Gaming, BetSoft, Platipus, Caleta, SmartSoft Gaming, Booming Games, Microgaming, Arcadem, Yggdrasil Gaming, Eurasian Gaming, G Games, Merkur Gaming, Mancala and more providers.

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Club Player

Boost your bankroll with a giant 250% Bonus!

Free Bonus:

$25

No deposit required

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Club Player

Boost your bankroll with a giant 250% Bonus!

$25 free! No deposit required (New customers)
✓ A 250% bonus up to $2,500 with your first deposit (New customers)
✓ Bonus available on your second purchase
✓ Bonus available on your third deposit
✓ Play directly in your browser – No software installation needed
✓ Downloadable games are also available
✓ Games for mobile devices · Play casino games on your smartphone or tablet
Popularity: This offer has been claimed by 63 visitors so far this month.

Software: SpinLogic

Explore bonuses at Club Player

MaChance

Double your money or quadruple your first deposit, your choice!

Sign-up Bonus:

free spins

No deposit required

MaChance

Double your money or quadruple your first deposit, your choice!

10 free spins No deposit required (New customers)
✓ A 300% bonus up to $60 + 20 free spins with your first deposit (New customers)
✓ Play directly in your browser – No software installation needed
✓ Games for mobile devices · Play casino games on your smartphone or tablet
Live casino · Play against real croupiers at MaChance
Tested and certified by Casino Bonus Center
Popularity: This offer has been claimed by 62 visitors so far this month.

Software: Fugaso, Evolution Gaming, Rival, Kalamba Games, Playson, Reevo, Gaming Corps, Pragmatic Play, Triple Cherry, Belatra Games, Caleta, StakeLogic, Booming Games, Booongo, Eurasian Gaming, Play n GO, Arrows Edge, SmartSoft Gaming, Red Rake, Playtech, Mancala, BGaming, Yggdrasil Gaming, Tom Horn, Aviatrix, Arcadem, Platipus, LuckyStreak, NolimitCity, Spinomenal, Spribe, BetSoft, G Games and more providers.

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NextCasino

Double welcome bonus: $200 + 100 free spins in "Twin Spin"

Welcome offer:

100% Bonus up to

$200

+ 100 free spins

Bonus on first deposit

New customer only · 18+ · Gamble responsibly · Terms & conditions apply

NextCasino

Double welcome bonus: $200 + 100 free spins in "Twin Spin"

✓ A 100% bonus up to $200 + 100 free spins with your first deposit (New customers)
✓ Bonus available on your second purchase
✓ Play directly in your browser – No software installation needed
✓ Games for mobile devices · Play casino games on your smartphone or tablet
Live casino · Play against real croupiers at NextCasino
Tested and certified by Casino Bonus Center
Popularity: This offer has been claimed by 62 visitors so far this month.

Software: NetEnt, Microgaming, Williams Interactive, NextGen Gaming, ELK Studios, Play n GO, NeoGames, Amaya Cryptologic and Evolution Gaming

Explore bonuses at NextCasino

Desert Nights Casino

Enjoy the oasis of online gaming with a $2,550 welcome bonus!

Free Bonus:

$10

No deposit required

Explore bonuses at Desert Nights Casino

Desert Nights Casino

Enjoy the oasis of online gaming with a $2,550 welcome bonus!

$10 free! No deposit required (New customers)
✓ A 250% bonus up to $2,550 with your first deposit (New customers)
✓ Play directly in your browser – No software installation needed
✓ Downloadable games are also available
✓ Games for mobile devices · Play casino games on your smartphone or tablet
Tested and certified by Casino Bonus Center
Popularity: This offer has been claimed by 62 visitors so far this month.

Software: Rival, Arrows Edge, Qora Games, DragonGaming and Saucify

Explore bonuses at Desert Nights Casino

Grande Vegas

Get 50 free spins and a welcome package of $300!

Sign-up Bonus:

free spins

No deposit required

Explore bonuses at Grande Vegas

Grande Vegas

Get 50 free spins and a welcome package of $300!

50 free spins No deposit required (New customers)
✓ A 150% bonus up to $300 with your first deposit (New customers)
✓ Bonus available on your second purchase
✓ Play directly in your browser – No software installation needed
✓ Downloadable games are also available
✓ Games for mobile devices · Play casino games on your smartphone or tablet
Live casino · Play against real croupiers at Grande Vegas
Tested and certified by Casino Bonus Center
Popularity: This offer has been claimed by 60 visitors so far this month.

Software: SpinLogic and Visionary iGaming

Explore bonuses at Grande Vegas

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