Latest Casino Bonuses for May 2025
Terms & Conditions apply · Play responsibly
KingSpin Casino
Join the Boss’s Inner Circle with a Tripled Starting Balance!
May 14
- ✓ Bulgarian players are accepted
- Accepts Bitcoin and other cryptocurrencies
- ✓ Play instantly in your browser – No installation required
- ✓ Mobile-friendly games · Enjoy playing on smartphones and tablets
- Live Casino · Play against real croupiers at KingSpin Casino
- Rating: 3.8/5
- 43 Game Providers: Gamomat, BF Games, StakeLogic, BRAGG, Relax Gaming, Leap Gaming, Red Rake, Blue Guru Games, ReelPlay, Skywind, Fantasma, Swintt, and others.
Terms & Conditions apply · Play responsibly
HotSlots
Double the Heat with €200 Bonuses + 50 Free Spins Not Once, But Twice!
May 12
- ✓ Bulgarian players are accepted
- Accepts Bitcoin and other cryptocurrencies
- ✓ Play instantly in your browser – No installation required
- ✓ Mobile-friendly games · Enjoy playing on smartphones and tablets
- Live Casino · Play against real croupiers at HotSlots
- Tested and certified by Casino Bonus Center · Rating: 3.8/5
- 61 Game Providers: NOVAslots, Fantasma, WinFast Games, Booming Games, StakeLogic, Leap Gaming, Blue Guru Games, Pragmatic Play, Gaming Corps, Evolution Gaming, Slotmill, OnAir Entertainment, and others.
Terms & Conditions apply · Play responsibly
SpinStar
Race to Win a BMW and enjoy Huge Bonuses on Casino Games and Sports Betting!
May 9
- ✓ Bulgarian players are accepted
- Accepts Bitcoin and other cryptocurrencies
- ✓ Play instantly in your browser – No installation required
- ✓ Mobile-friendly games · Enjoy playing on smartphones and tablets
- Live Casino · Play against real croupiers at SpinStar
- ✓ Online sports betting
- Tested and certified by Casino Bonus Center · Rating: 3.9/5
- 46 Game Providers: Booming Games, NolimitCity, SpinStar Originals, BGaming, NetEnt, Playzia, Kiron Interactive, Spribe, Blueprint Gaming, Spinomenal, Endorphina, Belatra Games, and others.
Terms & Conditions apply · Play responsibly
Fair Go Casino
An Aussie Favourite — Open to Players Worldwide!
April 30
- ✓ $5 free! No deposit required
- Bonus Code: FAIRGO5
- Bonus Code: WELCOME
- ✓ Bulgarian players are accepted
- Accepts Bitcoin and other cryptocurrencies
- ✓ Play instantly in your browser – No installation required
- ✓ Mobile-friendly games · Enjoy playing on smartphones and tablets
- Tested and certified by Casino Bonus Center · Rating: 2.9/5
- Games Provider: SpinLogic
Terms & Conditions apply · Play responsibly
Cosmo Casino
Unlock 150 Jackpot Spins Today for Only €10!
April 25
- ✓ Bulgarian players are accepted
- Accepts Bitcoin and other cryptocurrencies
- ✓ Play instantly in your browser – No installation required · Optional game downloads available
- ✓ Mobile-friendly games · Enjoy playing on smartphones and tablets
- Live Casino · Play against real croupiers at Cosmo Casino
- Over €10,824,457 in Progressive Jackpots
- Tested and certified by Casino Bonus Center · Rating: 4/5
- 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.
Terms & Conditions apply · Play responsibly
GambleZen Casino
Discover Nature’s Hidden Treasures with €3,625 in Your Backpack
April 24
- ✓ 50 Free Spins · No deposit required
- Bonus Code: GZ50
- ✓ Exclusive No-Deposit Bonus for Bulgarian Players!
- ✓ Bulgarian players are accepted
- Accepts Bitcoin and other cryptocurrencies
- ✓ Play instantly in your browser – No installation required
- ✓ Mobile-friendly games · Enjoy playing on smartphones and tablets
- Live Casino · Play against real croupiers at GambleZen Casino
- Tested and certified by Casino Bonus Center · Rating: 4.2/5
- 86 Game Providers: Platin Gaming, Ezugi, Onlyplay, OctoPlay, Fugaso, Pragmatic Play, LiveGames, XProGaming, KA Gaming, Evolution Gaming, Betsolutions, Playtech, and others.
Terms & Conditions apply · Play responsibly
Casino Action
Jump into the Action with up to €1,250 in bonuses!
April 17
- ✓ Bulgarian players are accepted
- Accepts Bitcoin and other cryptocurrencies
- ✓ Play instantly in your browser – No installation required · Optional game downloads available
- ✓ Mobile-friendly games · Enjoy playing on smartphones and tablets
- Live Casino · Play against real croupiers at Casino Action
- Over €10,824,457 in Progressive Jackpots
- Tested and certified by Casino Bonus Center · Rating: 4/5
- 39 Game Providers: Ino Games, Real Dealer Studios, Neon Valley, Nailed It!, Gameburger Studios, Infinity Dragon, Snowborn Games, SlingShot, Switch Studios, Games Global, Triple Edge, Buck Stakes, and others.
Top 10 Online Casinos in Bulgaria (May 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 May 2025. SnatchCasino, Zodiac Casino, and Grand Mondial lead our rankings, standing out for their extensive selection of high-paying slots, immersive live dealer tables, exclusive bonuses, and lightning-fast payouts.
Browse our expert-ranked list below and claim your exclusive welcome bonus today!
| Online Casinos Bulgaria | Welcome Bonus |
|---|---|
SnatchCasino 50 Free Spins – Beach Vibes, Gangster Style | Bonus of 200% up to €1,000 + 100 Free Spins |
Zodiac Casino 80 chances to be a millionaire for €1 | 80 Free Spins |
Grand Mondial Get 150 chances to become a millionaire | 150 Free Spins |
GambleZen Casino €3,625 in Bonuses + 350 Free Spins | Bonus of 200% up to €500 + 100 Free Spins |
SpinCity Enjoy 30 Free Spins, No deposit needed! | Bonus of 200% up to €300 + 100 Free Spins |
Tsars An adventure-packed online сasino! | Bonus of 100% up to €300 + 100 Free Spins |
Casino Kingdom 40 chances to become a millionaire for €1 | 40 Free Spins |
Captain Cooks Casino Get 100 chances to be a millionaire for only €5! | 100 Free Spins |
Rollino Join the circus of winners! | Bonus of 200% up to €3,000 + 100 Free Spins |
1Red Casino High Roller bonus packages | Bonus of 100% up to €3,000 + 50 Free Spins |
* 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.
