Unbeatable bonuses with your first deposit
Terms & Conditions apply · Play responsibly
GambleZen Casino
Discover Nature’s Hidden Treasures with €3,625 in Your Backpack
- ✓ Japanese players are accepted
- Accepts Bitcoin and other cryptocurrencies
- ✓ Play directly in your browser – No software installation needed
- ✓ Games for mobile devices · Play casino games on your smartphone or tablet
- 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
Rollino
Enter the Fairground with an Exclusive Bonus up to €6,000!
- ✓ Japanese players are accepted
- ✓ Play directly in your browser – No software installation needed
- ✓ Games for mobile devices · Play casino games on your smartphone or tablet
- Live Casino · Play against real croupiers at Rollino
- ✓ Online sports betting
- Tested and certified by Casino Bonus Center · Rating: 4.1/5
- 85 Game Providers: 1X2gaming, Platipus, Red Rake, Spinmatic, VIVO Gaming, High 5, Amatic, Pragmatic Play, Playbro, ThunderSpin, Barbara Bang, Thunderkick, and others.
Terms & Conditions apply · Play responsibly
ZotaBet
Dive into a world of unlimited VIP betting with a €6,000 Welcome Bonus + 100 Free Spins
- Bonus Code: WELCOME
- ✓ Japanese players are accepted
- Accepts Bitcoin and other cryptocurrencies
- ✓ Play directly in your browser – No software installation needed
- ✓ Games for mobile devices · Play casino games on your smartphone or tablet
- Live Casino · Play against real croupiers at ZotaBet
- ✓ Online sports betting
- Tested and certified by Casino Bonus Center · Rating: 4.1/5
- 132 Game Providers: ReelPlay, AceRun, Gamzix, TrueLab Games, Spribe, Bet2Tech, Playson, Four Leaf Gaming, 4ThePlayer, KA Gaming, Hölle Games, RAW iGaming, and others.
Terms & Conditions apply · Play responsibly
1Red Casino
Big rewards for newcomers and High Rollers
- Bonus Code: ONERED
- ✓ Japanese players are accepted
- Accepts Bitcoin and other cryptocurrencies
- ✓ Play directly in your browser – No software installation needed
- ✓ Games for mobile devices · Play casino games on your smartphone or tablet
- Live Casino · Play against real croupiers at 1Red Casino
- ✓ Online sports betting
- Over $18,017,092 in Jackpots by Games Global
- Tested and certified by Casino Bonus Center · Rating: 4.1/5
- 88 Game Providers: BGaming, Push Gaming, SmartSoft Gaming, Eurasian Gaming, Red Rake, Evolution Gaming, Gamebeat, Playson, Atmosfera, Red Tiger, NolimitCity, Woohoo Games, 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 directly in your browser – No software installation needed
- ✓ Games for mobile devices · Play casino games on your smartphone or tablet
- 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
Cleopatra Casino
Get a pharaonic bonus of $4,000
- ✓ Japanese players are accepted
- Accepts Bitcoin and other cryptocurrencies
- ✓ Play directly in your browser – No software installation needed
- ✓ Games for mobile devices · Play casino games on your smartphone or tablet
- Live Casino · Play against real croupiers at Cleopatra Casino
- Over $18,017,092 in Jackpots by Games Global
- Tested and certified by Casino Bonus Center · Rating: 4/5
- 40 Game Providers: QuickSpin, VIVO Gaming, Evoplay, Play Reels, Endorphina, Playtech, Merkur Gaming, Playson, August Gaming, Ezugi, Igrosoft, Platipus, and others.
Terms & Conditions apply · Play responsibly
Quatro Casino
700 free spins with your first deposit!
- ✓ Japanese players are accepted
- Accepts Bitcoin and other cryptocurrencies
- ✓ Play directly in your browser – No software installation needed
- ✓ Downloadable games are also available
- ✓ Games for mobile devices · Play casino games on your smartphone or tablet
- Live Casino · Play against real croupiers at Quatro Casino
- Over $9,952,791 in Progressive Jackpots
- Tested and certified by Casino Bonus Center · Rating: 4/5
- 39 Game Providers: PearFiction, Nailed It!, Fortune Factory, Buck Stakes, Neon Valley, Hammertime Games, Oros Gaming, Foxium, SpinPlay Games, Almond Gaming, Wishbone Games, Snowborn Games, and others.
Top 10 Online Casinos in Japan (April 2025)
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 April 2025. bitStarz, Zodiac Casino, and King Billy 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 bonus today!
| Online Casinos Japan | Welcome Bonus |
|---|---|
bitStarz | Bonus of 100% up to ¥10,000 and 180 free spins |
Zodiac Casino | 80 free spins |
King Billy Casino | Bonus of 100% up to $500 and 100 free spins |
SnatchCasino | Bonus of 200% up to €1,000 and 100 free spins |
Casumo | Bonus of 100% up to $400 |
InterCasino | Bonus of 100% up to $300 and 100 free spins |
888Casino | Bonus of 100% up to $1,000 |
Betsson | Bonus of 100% up to $100 and 50 free spins |
betsafe | Bonus of 100% up to $200 and 200 free spins |
Grand Mondial | 150 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 Japanese players to ensure you get the biggest sign-up bonuses, top-tier games, and the most rewarding loyalty programs.
