Best Online Casinos in Japan – Updated May 2025
Terms & Conditions apply · Play responsibly
Zodiac Casino
80チャンスは億万長者になるために!
- ✓ Japanese 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 Zodiac Casino
- Over $10,833,217 in Progressive Jackpots
- Tested and certified by Casino Bonus Center · Rating: 4.6/5
- 39 Game Providers: Just for the Win, Area Vegas, SlingShot, Stormcraft, Blue Ring Studios, Snowborn Games, Triple Edge, Infinity Dragon, All For One, Ino Games, Real Dealer Studios, Barstruck, and others.
Terms & Conditions apply · Play responsibly
bitStarz
Claim up to ¥50,000 in Bonuses + 180 Free Spins!
- ✓ Japanese players are accepted
- ✓ Exclusive biggest bonuses for Japanese 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 bitStarz
- Over $19,527,785 in Jackpots by Games Global
- Tested and certified by Casino Bonus Center · Rating: 4.6/5
- 91 Game Providers: BitStarz Originals, Slotopia, Big Time Gaming, Playson, Boomerang Studios, NetEnt, Blue Guru Games, Playtech, VIVO Gaming, Gaming Corps, Booongo, Onlyplay, and others.
Terms & Conditions apply · Play responsibly
Casumo
Amazing bonuses and daily video slots tournaments!
- ✓ Japanese 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 Casumo
- ✓ Online sports betting
- Tested and certified by Casino Bonus Center · Rating: 4/5
- 35 Game Providers: Merkur Gaming, IGT Interactive, Red Tiger, Thunderkick, Games Global, Playtech, ELK Studios, Slingo Originals, NYX Interactive, Bally Interactive, QuickSpin, Fortune Factory, and others.
Terms & Conditions apply · Play responsibly
SnatchCasino
Where every spin combines beach leisure with gangster thrills!
- ✓ 50 Free Spins · No deposit required
- Bonus Code: CBC50FS
- ✓ Japanese 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
- 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.
Terms & Conditions apply · Play responsibly
InterCasino
$900 welcome bonus plus 110 free spins on different games!
- ✓ Japanese 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 InterCasino
- Tested and certified by Casino Bonus Center · Rating: 3.1/5
- 13 Game Providers: NetEnt, BetSoft, Games Global, NextGen Gaming, QuickSpin, Yggdrasil Gaming, IGT Interactive, Pragmatic Play, Thunderkick, Leander Games, Evolution Gaming, Play n GO, and Realistic Games
Terms & Conditions apply · Play responsibly
betsafe
Experience the thrill of sports betting and the excitement of the best casino games
- ✓ Japanese 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 betsafe
- ✓ Online sports betting
- ✓ Play poker online at betsafe – Online poker room
- Tested and certified by Casino Bonus Center · Rating: 4.5/5
- 138 Game Providers: Relax Gaming, TouchStone Games, High 5, Fortune Factory, Playtech, Bad Dingo, WinFast Games, Wizard Games, Skywind, Print Studios, Apollo Games, MahiGaming, and others.
Terms & Conditions apply · Play responsibly
Loki Casino
Up to $21,000 bonus & cashback in casino games!
- ✓ Japanese 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 Loki Casino
- Over $19,527,785 in Jackpots by Games Global
- Tested and certified by Casino Bonus Center · Rating: 3.9/5
- 86 Game Providers: Play n GO, Amusnet, ELK Studios, Ortiz, G Games, Kiron Interactive, Booming Games, Nucleus Gaming, Wazdan, Revolver Gaming, Gaming Corps, BF Games, and others.
Top 10 Online Casinos in Japan
Expert-Rated Real Money Casinos with Top Bonuses
Looking for the best online casinos in Japan? Our expert team has tested and reviewed hundreds of real money gambling sites to bring you the top 10 choices for May 2025. bitStarz, Zodiac Casino, 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 bonus today!
| Online Casinos Japan | Welcome Bonus |
|---|---|
bitStarz Claim up to ¥50,000 in Bonuses | Bonus of 100% up to ¥10,000 + 180 Free Spins |
Zodiac Casino 80チャンスは億万長者になるために! | 80 Free Spins |
SnatchCasino 50 Free Spins – Beach Vibes, Gangster Style | Bonus of 200% up to €1,000 + 100 Free Spins |
Casumo Daily slots tournaments | Bonus of 100% up to $400 |
InterCasino $900 Welcome bonus + 110 extra spins! | Bonus of 100% up to $300 + 100 Free Spins |
888Casino Get a free spin on the wish wheel! | Bonus of 100% up to $1,000 |
Betsson Sportsbook, casino, live casino | Bonus of 100% up to $100 + 50 Free Spins |
betsafe The best games, all in a safe place | Bonus of 100% up to $200 + 200 Free Spins |
Grand Mondial ジャックポットが当たる150回のチャンスをゲット | 150 Free Spins |
EnergyCasino 30 free spins plus $400 in bonuses! | Bonus of 100% up to $200 |
* Terms & Conditions Apply · Play responsibly
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May 2025's Featured Casinos in Japan
Discover top-rated online casinos with the best offers this month. Our curated list ensures you access the most generous promotions and trusted casinos. From exclusive welcome packages to exciting no deposit offers, start your gaming journey with the finest online casino bonuses available in Japan.
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