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
  • Exclusive No-Deposit Bonus for Austrian Players!
  • 200% bonus up to €1,000 + 200 Free Spins with your first deposit (New customers)
  • Bonus available on your second and third deposit
  • Austrian 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 328 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.

ReloadBet

Free bonus for Austrian players and €300 as welcome bonus!

Free Bonus:

€5

No deposit required

Terms & Conditions apply ·  Play responsibly

ReloadBet

Free bonus for Austrian players and €300 as welcome bonus!

  • €5 free! No deposit required
  • 100% bonus up to €300 with your first deposit (New customers)
  • Austrian players are accepted
  • Exclusive bonuses for Austrian players
  • 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 €19,601,561 in Jackpots by Games Global
  • Tested and certified by Casino Bonus Center · Rating: 3.9/5
  • Popularity: This offer has been claimed by 260 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.

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
  • Exclusive No-Deposit Bonus for Austrian Players!
  • 200% bonus up to €1,000 + 100 Free Spins with your first deposit (New customers)
  • Bonus available on your second and third deposit
  • Austrian 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 228 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
  • Austrian 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 209 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.

KikoBet

20 Free Spins for new players from Austria plus a €450 Welcome Package!

Sign-up Bonus:

20

Free Spins

No deposit required

Terms & Conditions apply ·  Play responsibly

KikoBet

20 Free Spins for new players from Austria plus a €450 Welcome Package!

  • 20 Free Spins · No deposit required
  • 100% bonus up to €200 with your first deposit (New customers)
  • Bonus available on your second and third deposit
  • Austrian 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
  • Tested and certified by Casino Bonus Center · Rating: 4.1/5
  • Popularity: This offer has been claimed by 177 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.

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
  • Austrian 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 167 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.

EnergyCasino

Enjoy 30 free spins plus a €400 welcome package

Sign-up Bonus:

30

Free Spins

No deposit required

Significant terms: 18+. 30 Free spins (Spins value: €0.10) on Book of Dead™ slot machine available once, to new customers who register at EnergyCasino using the promotional link. Maximum winnings €100. Spins expire after 7 days. · Terms & Conditions apply  ·  Play responsibly

EnergyCasino

Enjoy 30 free spins plus a €400 welcome package

  • 30 Free Spins · No deposit required
  • 100% bonus up to €200 with your first deposit (New customers)
  • Bonus available on your second purchase
  • Austrian 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 EnergyCasino
  • Over €19,601,561 in Jackpots by Games Global
  • Tested and certified by Casino Bonus Center · Rating: 4.4/5
  • Popularity: This offer has been claimed by 147 visitors so far this month.
  • 65 Game Providers: Pragmatic Play, NetEnt, NetGaming, Evoplay, Play n GO, Big Time Gaming, Merkur Gaming, NolimitCity, BF Games, Bally Wulff, Just for the Win, Iron Dog Studio, and others.

Top 10 Online Casino Bonuses in Austria (May 2025)

Expert-Rated Real Money Casinos with Top Bonuses

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

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

Online Casinos AustriaWelcome Bonus

Unleash the Joker's fun with 50 Free Spins!

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

20 Freispiele ohne einzahlung | Code: 20GRATIS

Bonus of 100% up to €200 + 50 Free Spins

80 chances to be a millionaire for €1

80 Free Spins

10€ free to try the games!

Bonus of 150% up to €150

20 Free Spins for New Players!

Bonus of 100% up to €200

Up to €400 Bonus + 100 Free Spins!

Bonus of 100% up to €200 + 50 Free Spins

40 chances to become a millionaire for only €1!

40 Free Spins

Premier online sportsbook and casino

Bonus of 100% up to €250

Get 200 free spins!

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

Claim up to €500 in Bonuses

Bonus of 100% up to €100 + 180 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 Austrian players to ensure you get the biggest sign-up bonuses, top-tier games, and the most rewarding loyalty programs.