Get a huge bonus on your first deposit · Page 2 of 6

Casino Kingdom

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1

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Terms & Conditions apply ·  Play responsibly

Casino Kingdom

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150

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Cosmo Casino

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  • Bonus available on your second purchase
  • Bulgarian players are accepted
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  • 39 Game Providers: Snowborn Games, High Limit Studio, Circular Arrow, Barstruck, Triple Edge, Buck Stakes, Nailed It!, NorthernLights Gaming, Pragmatic Play, OnAir Entertainment, Area Vegas, Oros Gaming, and others.

Golden Tiger

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€100

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Terms & Conditions apply ·  Play responsibly

Golden Tiger

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  • Bonus available on your second and third deposit
  • Bulgarian players are accepted
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DrueckGlueck

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€100

+ 50 Free Spins

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DrueckGlueck

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SpinCity

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Sign-up Bonus:

30

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No deposit required

Terms & Conditions apply ·  Play responsibly

SpinCity

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  • SpinCity offers exclusive bonuses for CasinoBonusCenter visitors
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  • Available in multiple languages, including English
  • Tested and certified by Casino Bonus Center · Rating: 3.9/5
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Merlin Casino

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Sign-up Bonus:

20

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No deposit required

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Merlin Casino

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  • Bonus Code: SPINS20
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  • Merlin Casino offers exclusive bonuses for CasinoBonusCenter visitors
  • Bulgarian players are accepted
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  • Online sports betting
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  • Rating: 3.9/5
  • Popularity: This offer has been claimed by 343 visitors so far this month.
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Top 10 Online Casino Bonuses in Bulgaria (August 2025)

Expert-Rated Real Money Casinos with Top Bonuses

Looking for the best online casinos in Bulgaria? Our expert team has tested and reviewed hundreds of real money gambling sites to bring you the top 10 choices for August 2025. SnatchCasino, Grand Mondial, and Zodiac Casino lead our rankings, standing out for their extensive selection of high-paying slots, immersive live dealer tables, exclusive bonuses, and lightning-fast payouts.

Most Popular Online Casinos in Bulgaria

Curious which brands stand out among Bulgarian players right now? Here are the top 3 most popular online casinos in the last 30 days—each trusted for their excellent bonuses, diverse games, and reliable payouts:

  1. GambleZen Casino – Ranked as the #1 most popular online casino among Bulgarian players this month. Check why GambleZen Casino is so popular in Bulgaria
  2. SpinCity – Holds the #2 spot in popularity with Bulgarian players for August 2025. See Current Bonuses at SpinCity
  3. Bingo Billy – Currently ranked #3 among Bulgaria’s most played online casinos. View Available Promotions at Bingo Billy

Browse our expert-ranked list below and claim your exclusive welcome bonuses today!

Online Casinos BulgariaWelcome Bonus

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* Terms & Conditions Apply ·  Play responsibly

With nearly two decades of experience in the industry, CasinoBonusCenter.com has been analyzing and comparing online casinos since 2006. Our dedicated team of professionals has handpicked the most trusted casinos for Bulgarian players to ensure you get the biggest sign-up bonuses, top-tier games, and the most rewarding loyalty programs.