Most Popular Online Casinos in June

KikoBet

Unlock a €500 Welcome Package – Your Gateway to Premier Casino and Sports Betting Thrills!

Welcome offer:

100% Bonus up to

€200

Bonus on first deposit

Terms & Conditions apply ·  Play responsibly

KikoBet

Unlock a €500 Welcome Package – Your Gateway to Premier Casino and Sports Betting Thrills!

  • 100% bonus up to €200 with your first deposit (New customers)
  • KikoBet offers exclusive bonuses for CasinoBonusCenter visitors
  • Bonus available on your second and third deposit
  • Serbian 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 KikoBet
  • Online sports betting
  • Available in multiple languages, including English
  • Tested and certified by Casino Bonus Center · Rating: 4.1/5
  • Popularity: This offer has been claimed by 200 visitors so far this month.
  • 26 Game Providers: Pragmatic Play, Spribe, Vibra Gaming, Salsa Technology, Evolution Gaming, iSoftBet, Yggdrasil Gaming, Casino Technology, Playtech, Gamzix, Play n GO, Foxium, and others.

ReloadBet

Online sports and casino betting · €300 welcome bonus!

Welcome offer:

100% Bonus up to

€300

Bonus on first deposit

Terms & Conditions apply ·  Play responsibly

ReloadBet

Online sports and casino betting · €300 welcome bonus!

  • 100% bonus up to €300 with your first deposit (New customers)
  • ReloadBet offers exclusive bonuses for CasinoBonusCenter visitors
  • Serbian 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 ReloadBet
  • Online sports betting
  • Over €11,616,658 in Jackpots by Games Global
  • Available in multiple languages, including English
  • Tested and certified by Casino Bonus Center · Rating: 3.9/5
  • Popularity: This offer has been claimed by 179 visitors so far this month.
  • 32 Game Providers: Play n GO, 3 Oaks Gaming, iSoftBet, Salsa Technology, Yggdrasil Gaming, Evolution Gaming, Red Tiger, Spribe, BRAGG, Blueprint Gaming, Playtech, Vibra Gaming, and others.

GambleZen Casino

Discover Nature’s Hidden Treasures with €3,625 in Your Backpack

Welcome offer:

200% Bonus up to

€500

+ 100 Free Spins

Bonus on first deposit

Terms & Conditions apply ·  Play responsibly

GambleZen Casino

Discover Nature’s Hidden Treasures with €3,625 in Your Backpack

  • 200% bonus up to €500 + 100 Free Spins with your first deposit (New customers)
  • GambleZen Casino offers exclusive bonuses for CasinoBonusCenter visitors
  • Bonus available on your second and third deposit
  • Serbian 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
  • Available in multiple languages, including English
  • Tested and certified by Casino Bonus Center · Rating: 4.2/5
  • Popularity: This offer has been claimed by 176 visitors so far this month.
  • 86 Game Providers: Platin Gaming, Ezugi, Onlyplay, OctoPlay, Fugaso, Pragmatic Play, LiveGames, XProGaming, KA Gaming, Evolution Gaming, Betsolutions, Playtech, and others.

SlottoJAM

€500 welcome reward, weekly tournaments and VIP Club

Welcome offer:

100% Bonus up to

€200

Bonus on first deposit

Terms & Conditions apply ·  Play responsibly

SlottoJAM

€500 welcome reward, weekly tournaments and VIP Club

  • 100% bonus up to €200 with your first deposit (New customers)
  • Bonus available on your second purchase
  • Serbian 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 SlottoJAM
  • Online sports betting
  • Over €11,616,658 in Jackpots by Games Global
  • Tested and certified by Casino Bonus Center · Rating: 3.5/5
  • Popularity: This offer has been claimed by 157 visitors so far this month.
  • 103 Game Providers: Hacksaw Gaming, Synot Games, Buck Stakes, Salsa Technology, Just for the Win, Indigo Magic, Reevo, Amatic, Endorphina, Neko Games, Hammertime Games, Vibra Gaming, and others.

Captain Cooks Casino

100 Chances to Be a Millionaire – Just €5!

Welcome offer:

100

Free Spins

Bonus on first deposit

Terms & Conditions apply ·  Play responsibly

Captain Cooks Casino

100 Chances to Be a Millionaire – Just €5!

  • 100 Free Spins with your first deposit (New customers)
  • Bonus available on your second and third deposit
  • Serbian 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 Captain Cooks Casino
  • Over €2,142,059 in Progressive Jackpots
  • Available in multiple languages, including English
  • Tested and certified by Casino Bonus Center · Rating: 4.1/5
  • Popularity: This offer has been claimed by 96 visitors so far this month.
  • 39 Game Providers: Triple Edge, Hammertime Games, Circular Arrow, SlingShot, Snowborn Games, Foxium, Half Pixel, Neko Games, Buck Stakes, Coin Machine Gaming, Area Vegas, PearFiction, and others.

Casino Kingdom

Get 40 chances to become a millionaire for only €1

Sign-up Bonus:

1

Free Spin

No deposit required

Terms & Conditions apply ·  Play responsibly

Casino Kingdom

Get 40 chances to become a millionaire for only €1

  • 1 Free Spin · No deposit required
  • 40 Free Spins with your first deposit (New customers)
  • Bonus available on your second purchase
  • Serbian 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 Kingdom
  • Over €2,142,059 in Progressive Jackpots
  • Available in multiple languages, including English
  • Tested and certified by Casino Bonus Center · Rating: 4.1/5
  • Popularity: This offer has been claimed by 91 visitors so far this month.
  • 39 Game Providers: SlingShot, Barstruck, Flip Five Gaming, Gameburger Studios, Coin Machine Gaming, Snowborn Games, PearFiction, Pragmatic Play, All For One, Fortune Factory, Games Global, Buck Stakes, and others.

Rollino

Enter the Fairground with an Exclusive Bonus up to €6,000!

Sign-up Bonus:

20

Free Spins

No deposit required

Terms & Conditions apply ·  Play responsibly

Rollino

Enter the Fairground with an Exclusive Bonus up to €6,000!

  • 20 Free Spins · No deposit required
  • Exclusive No-deposit Bonus – Available in Serbia and Selected Countries
  • 200% bonus up to €3,000 + 100 Free Spins with your first deposit (New customers)
  • Rollino offers exclusive bonuses for CasinoBonusCenter visitors
  • Bonus available on your second and third deposit
  • Serbian players are accepted
  • Play instantly in your browser – No installation required
  • Mobile-friendly games · Enjoy playing on smartphones and tablets
  • Live Casino · Play against real croupiers at Rollino
  • Online sports betting
  • Tested and certified by Casino Bonus Center · Rating: 4.1/5
  • Popularity: This offer has been claimed by 88 visitors so far this month.
  • 85 Game Providers: 1X2gaming, Platipus, Red Rake, Spinmatic, VIVO Gaming, High 5, Amatic, Pragmatic Play, Playbro, ThunderSpin, Barbara Bang, Thunderkick, and others.

Top 10 Online Casino Bonuses in Serbia (June 2025)

Expert-Rated Real Money Casinos with Top Bonuses

Looking for the best online casinos in Serbia? Our expert team has tested and reviewed hundreds of real money gambling sites to bring you the top 10 choices for June 2025. Zodiac Casino, SnatchCasino, and Casino Kingdom 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 bonuses today!

Online Casinos SerbiaWelcome Bonus

80 chances to be a millionaire for €1

80 Free Spins

Casino Fun, Beach Vibes, Gangster Style

Bonus of 225% up to €1,000 + 100 Free Spins

40 chances to become a millionaire for €1

40 Free Spins

The Kingdom of gambling · €500 bonus

Bonus of 100% up to €500 + 200 Free Spins

A wide range of online gambling products

Bonus of 100% up to €300

Get 40 Spins for Just €1

40 Free Spins

Get 150 chances to become a millionaire

150 Free Spins

Boosted odds, enhanced winnings!

Bonus of 100% up to €500 + 200 Free Spins

Big bonuses, Live casino, and Sports

Bonus of 100% up to €500 + 200 Free Spins

Join the Circus of Winners!

Bonus of 200% up to €3,000 + 100 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 Serbian players to ensure you get the biggest sign-up bonuses, top-tier games, and the most rewarding loyalty programs.