Most Popular Online Casinos in May

iWildCasino

Join the Joker’s Playground – Enjoy 50 Free Spins + €4,000 in Rewards!

Sign-up Bonus:

50

Free Spins

No deposit required

Terms & Conditions apply ·  Play responsibly

iWildCasino

Join the Joker’s Playground – Enjoy 50 Free Spins + €4,000 in Rewards!

  • 50 Free Spins · No deposit required
  • Bonus Code: CBC50FS
  • 200% bonus up to €1,000 + 200 Free Spins with your first deposit (New customers)
  • Bonus available on your second and third deposit
  • Romanian 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 iWildCasino
  • Tested and certified by Casino Bonus Center · Rating: 4.1/5
  • Popularity: This offer has been claimed by 322 visitors so far this month.
  • 73 Game Providers: Amusnet, QuickSpin, Platipus, EGT Digital, StakeLogic, Edict, SA Gaming, Spinmatic, 3 Oaks Gaming, MarkorTech, Push Gaming, OctoPlay, and others.

SnatchCasino

Where every spin combines beach leisure with gangster thrills!

Sign-up Bonus:

50

Free Spins

No deposit required

Terms & Conditions apply ·  Play responsibly

SnatchCasino

Where every spin combines beach leisure with gangster thrills!

  • 50 Free Spins · No deposit required
  • Bonus Code: CBC50FS
  • 200% bonus up to €1,000 + 100 Free Spins with your first deposit (New customers)
  • Bonus available on your second and third deposit
  • Romanian 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 SnatchCasino
  • Online sports betting
  • Tested and certified by Casino Bonus Center · Rating: 4.1/5
  • Popularity: This offer has been claimed by 220 visitors so far this month.
  • 80 Game Providers: Play n GO, Ezugi, Triple PG, OneTouch, Push Gaming, Hacksaw Gaming, Yggdrasil Gaming, Evoplay, Evolution Gaming, NetEnt, Fugaso, PG Soft, 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)
  • Bonus available on your second and third deposit
  • Romanian 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
  • Popularity: This offer has been claimed by 207 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.

Wolfy Casino

Enjoy up to €1,000 in Wager-Free Bonuses at Signup!

Sign-up Bonus:

20

Free Spins

No deposit required

Terms & Conditions apply ·  Play responsibly

Wolfy Casino

Enjoy up to €1,000 in Wager-Free Bonuses at Signup!

  • 20 Free Spins · No deposit required
  • Bonus Code: CENTER20
  • 100% bonus up to €200 with your first deposit (New customers)
  • Bonus Code: WELCOME
  • Bonus available on your second and third deposit
  • Romanian 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 Wolfy Casino
  • Rating: 3.8/5
  • Popularity: This offer has been claimed by 163 visitors so far this month.
  • 108 Game Providers: Play n GO, Gamomat, Atomic Slot Lab, Galaxsys, Nemesis, iSoftBet, Casimi, Blueprint Gaming, Amigo, BGaming, Thunderkick, Oryx Gaming, and others.

Slots Capital

Get €100 Free with Your First €25 Deposit!

Sign-up Bonus:

15

Free Spins

No deposit required

Terms & Conditions apply ·  Play responsibly

Explore bonuses at Slots Capital

Slots Capital

Get €100 Free with Your First €25 Deposit!

  • 15 Free Spins · No deposit required
  • Bonus Code: CAPITAL15SPINS
  • 400% bonus up to €100 with your first deposit (New customers)
  • Bonus Code: FIRST100FREE
  • Bonus available on your second and third deposit
  • Romanian 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
  • Tested and certified by Casino Bonus Center · Rating: 2.9/5
  • Popularity: This offer has been claimed by 106 visitors so far this month.
  • Game Providers: DragonGaming, Saucify, Arrows Edge, Qora Games, and Rival

888Casino

Joacă la casino cu 25 lei bonus fără depunere · 100 % până la 2.000 Lei cu Bonusul 888casino

Free Bonus:

25 RON

No deposit required

Terms & Conditions apply ·  Play responsibly

888Casino

Joacă la casino cu 25 lei bonus fără depunere · 100 % până la 2.000 Lei cu Bonusul 888casino

  • 25 RON free! No deposit required
  • 100% bonus up to 2,000 RON with your first deposit (New customers)
  • Bonus available on your second and third deposit
  • Romanian players are accepted
  • 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 888Casino
  • Online sports betting
  • Play poker online at 888Casino – Online poker room
  • Tested and certified by Casino Bonus Center · Rating: 4.9/5
  • Popularity: This offer has been claimed by 93 visitors so far this month.
  • 26 Game Providers: Playtech, Section8, NetEnt, Williams Interactive, Big Time Gaming, Play n GO, Wizard Games, Electracade, GTECH G2, Amaya Cryptologic, GTS, Pragmatic Play, and others.

Uptown Aces

$10 Free to try the games · Welcome bonus up to $2,500 whit No-max cashout!

Free Bonus:

$10

No deposit required

Terms & Conditions apply ·  Play responsibly

Explore bonuses at Uptown Aces

Uptown Aces

$10 Free to try the games · Welcome bonus up to $2,500 whit No-max cashout!

  • $10 free! No deposit required
  • Bonus Code: UPTOWN10
  • 250% bonus up to $2,500 with your first deposit (New customers)
  • Bonus Code: UNPACK
  • Romanian 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
  • Tested and certified by Casino Bonus Center · Rating: 3.2/5
  • Popularity: This offer has been claimed by 83 visitors so far this month.
  • Games Provider: SpinLogic

Top 10 Online Casino Bonuses in Romania (May 2025)

Expert-Rated Real Money Casinos with Top Bonuses

Looking for the best online casinos in Romania? Our expert team has tested and reviewed hundreds of real money gambling sites to bring you the top 10 choices for May 2025. 888Casino, NetBet, and SnatchCasino 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 RomaniaWelcome Bonus

Obține 25 lei bonus fără depunere

Bonus of 100% up to 2,000 RON

€200 bonus + 10 free spins on Vegas

Bonus of 100% up to 1,500 RON + 200 Free Spins

50 Free Spins – Beach Vibes, Gangster Style

Bonus of 200% up to €1,000 + 100 Free Spins

Join the circus of winners!

Bonus of 200% up to €3,000 + 100 Free Spins

Exclusive Bonus: 25 Free Spins

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

Up to 5 BTC in bonuses!

Bonus of 180% up to $20,000

50 free spins: No deposit required

Bonus of 100% up to €1,000

Up to €250 plus 100 free spins!

Bonus of 100% up to €250 + 100 Free Spins

$31 free plus a giant bonus!

Bonus of 200% up to $2,000 + 100 Free Spins

Sporstsbook | Casino | Live Casino

Bonus of 100% up to €200

* 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 Romanian players to ensure you get the biggest sign-up bonuses, top-tier games, and the most rewarding loyalty programs.