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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
Sloto Cash
Grab your $31 free chip, unlock a massive welcome bonus, and enjoy monthly freebies! More about Sloto Cash
- ✓ $31 free · No deposit required
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CoolCat Casino
Get a 260% welcome bonus, plus 20 free spins on sign-up! More about CoolCat Casino
- ✓ 20 free spins · No deposit required
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Slotastic
50 free spins, no deposit required, plus a 250% bonus and 50 additional spins! More about Slotastic
- ✓ 50 free spins · No deposit required
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Page 1 of 3 - 21 bonuses
❌ Attention US Visitors:
Please be aware that online gambling may be considered illegal in certain states within the United States. Check your local laws before engaging in online gambling activities.
Slotastic
Sign-up Bonus:
50
free spins
No deposit required
Slotastic
50 free spins, no deposit required, plus a 250% bonus and 50 additional spins!
- 50 free spins No deposit required (New customers)
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Software: SpinLogic and Visionary iGaming
iLucki
Welcome offer:
100% Bonus up to
$100
+ 100 free spins
Bonus on first deposit
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iLucki
Special $300 bonus plus 150 complimentary spins!
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EnergyCasino
Welcome offer:
100% Bonus up to
$200
Bonus on first deposit
New customer only · 18+ · Gamble responsibly · Terms & conditions apply
❌ Access restricted in the United States
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EnergyCasino
Enjoy 30 free spins plus a $400 welcome package
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Software: Novomatic, Microgaming, Evolution Gaming, Wazdan, Merkur Gaming, Edict, Extreme Live Gaming, BF Games, Play n GO, Big Time Gaming, Kalamba Games, Bally Wulff, Gamomat and NetEnt
Gratorama
Welcome offer:
100% Bonus up to
$200
Bonus on first deposit
❌ Access restricted in the United States
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Gratorama
Grab the $200 bonus and join us for the ride!
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Software: iSoftBet, SpinOro, Anakatech and Leander Games
Unique Casino
Sign-up Bonus:
25
free spins
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Unique Casino
Exclusive bonuses · 25 free spins + $500 bonus + 100 free spins on first deposit!
- 25 free spins No deposit required (New customers)
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King Billy Casino
Welcome offer:
100% Bonus up to
$500
+ 100 free spins
Bonus on first deposit
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King Billy Casino
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Winorama
Welcome offer:
100% Bonus up to
$200
Bonus on first deposit
❌ Access restricted in the United States
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Winorama
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- ✓ Play directly in your browser – No software installation needed
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Software: Anakatech and SpinOro
❌ Restrictions for the United States
Online gambling laws vary across U.S. states. Some have deemed it illegal, others have yet to address its legality, and a few have regulated and legalized it.
CasinoBonusCenter.com does not endorse or facilitate the use of its links or information in regions where it's considered illegal.
Regardless of these provisions, it remains your responsibility to ascertain the legality of using this website based on your jurisdiction.
