Sportsbook reviews: Free bets and betting bonuses
Terms & Conditions apply · Play responsibly
❌ Access restricted in the United States
We regret to inform you that 888Casino is not currently accepting registrations from users in the United States.
888Casino
Get up to $1,000 in bonus with your first deposit
- ✓ 1 free spin · No deposit required
- ✓ Japanese players are accepted
- ✓ 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 888Casino
- ✓ Online sports betting
- ✓ Play poker online at 888Casino – Online poker room
- Tested and certified by Casino Bonus Center · Rating: 4.9/5
- 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.
*Please note that 888Casino is not available in the United States.
Terms & Conditions apply · Play responsibly
❌ Access restricted in the United States
We regret to inform you that Betsson is not currently accepting registrations from users in the United States.
Betsson
Sports betting, online casino, poker, scratch cards and more!
- ✓ 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 Betsson
- ✓ Online sports betting
- ✓ Play poker online at Betsson – Online poker room
- Tested and certified by Casino Bonus Center · Rating: 4.8/5
- 95 Game Providers: Light and Wonder, Playson, Blueprint Gaming, Old Skool, Slingo Originals, Gamomat, Leander Games, High 5, Genesis, Side City Studios, iSoftBet, RELIGA, and others.
*Please note that Betsson is not available in the United States.
Terms & Conditions apply · Play responsibly
❌ Access restricted in the United States
We regret to inform you that betsafe is not currently accepting registrations from users in the United States.
betsafe
Experience the thrill of sports betting and the excitement of the best casino games
- ✓ Japanese players are accepted
- ✓ 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 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.
*Please note that betsafe is not available in the United States.
Terms & Conditions apply · Play responsibly
❌ Access restricted in the United States
We regret to inform you that NordicBet is not currently accepting registrations from users in the United States.
NordicBet
Experience the ultimate Nordic casino and sports betting!
- ✓ 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 NordicBet
- ✓ Online sports betting
- ✓ Play poker online at NordicBet – Online poker room
- Tested and certified by Casino Bonus Center · Rating: 4.3/5
- 143 Game Providers: PG Soft, Playtech, Slotmill, Pulse 8 Studios, Betradar, Switch Studios, Thunderkick, Apollo Games, Rabcat, Endorphina, TouchStone Games, Silverback, and others.
*Please note that NordicBet is not available in the United States.
Terms & Conditions apply · Play responsibly
❌ Access restricted in the United States
We regret to inform you that KikoBet is not currently accepting registrations from users in the United States.
KikoBet
Unlock a €450 Welcome Package – Your Gateway to Premier Casino and Sports Betting Thrills!
- ✓ 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 KikoBet
- ✓ Online sports betting
- Tested and certified by Casino Bonus Center · Rating: 4.1/5
- 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.
*Please note that KikoBet is not available in the United States.
Terms & Conditions apply · Play responsibly
❌ Access restricted in the United States
We regret to inform you that Rollino is not currently accepting registrations from users in the United States.
Rollino
Enter the fairground with an exclusive casino 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.
*Please note that Rollino is not available in the United States.
Terms & Conditions apply · Play responsibly
❌ Access restricted in the United States
We regret to inform you that Guts is not currently accepting registrations from users in the United States.
Guts
A $100 bonus plus a guaranteed reward on the "Game of Guts"
- ✓ 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 Guts
- ✓ Online sports betting
- ✓ Play poker online at Guts – Online poker room
- Over $15,879,649 in Jackpots by Games Global
- Tested and certified by Casino Bonus Center · Rating: 4.1/5
- 44 Game Providers: StakeLogic, Yggdrasil Gaming, Playson, Novomatic, Red Tiger, Blueprint Gaming, Push Gaming, Relax Gaming, Kalamba Games, Thunderkick, Gaming Realms, Wazdan, and others.
*Please note that Guts is not available in the United States.
Top 10 Online Casinos in Japan (March 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 March 2025. Zodiac Casino, bitStarz, 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 |
|---|---|
Zodiac Casino | 80 free spins |
bitStarz | Bonus of 100% up to ¥10,000 and 180 free spins |
King Billy Casino | Bonus of 100% up to $500 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 |
Grand Mondial | 150 free spins |
betsafe | Bonus of 100% up to $200 and 200 free spins |
EnergyCasino | 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 Japanese players to ensure you get the biggest sign-up bonuses, top-tier games, and the most rewarding loyalty programs.
❌ Restrictions for the United States
Online gambling laws vary across U.S. states. Some have deemed it illegal, others have yet to address its legality, and a few have regulated and legalized it.
CasinoBonusCenter.com does not endorse or facilitate the use of its links or information in regions where it's considered illegal.
Regardless of these provisions, it remains your responsibility to ascertain the legality of using this website based on your jurisdiction.
