Sportsbook reviews: Free bets and betting bonuses · Page 6 of 6
Terms & Conditions apply · Play responsibly
BetReels
Explore Casino & Sports Betting with a ¥50,000 Bonus!
- ✓ 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 BetReels
- ✓ Online sports betting
- ✓ Available in multiple languages, including English
- ✓ Tested and certified by Casino Bonus Center · Rating: 3.4/5
- ✓ 92 Game Providers: NolimitCity, SlingShot, 1X2gaming, Salsa Technology, Gong Gaming, Genesis, Buck Stakes, Wazdan, NetEnt, Felix Gaming, G Games, Ezugi, and others.
Terms & Conditions apply · Play responsibly
MrPlay
Play it how you want with a $200 Bonus + 100 Free Spins!
- ✓ 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 MrPlay
- ✓ Online sports betting
- ✓ Tested and certified by Casino Bonus Center · Rating: 3.2/5
- ✓ 54 Game Providers: NYX Interactive, Big Time Gaming, Inspired Gaming, Sigma Gaming, Hacksaw Gaming, Betdigital, PariPlay, Old Skool, Tom Horn, Electric Elephant, Playson, Evolution Gaming, and others.
Terms & Conditions apply · Play responsibly
Casino Sieger
$200 welcome bonus! Online casino and sportsbook
- ✓ 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 Casino Sieger
- ✓ Online sports betting
- ✓ Casino Sieger is available in 3 languages: English, Finnish, and Norwegian
- ✓ Rating: 3.1/5
- ✓ 41 Game Providers: Crazy Tooth, ELK Studios, Kiron Interactive, Switch Studios, Kalamba Games, Gameburger Studios, Pulse 8 Studios, Just for the Win, Hacksaw Gaming, Play n GO, BetSoft, Oryx Gaming, and others.
Terms & Conditions apply · Play responsibly
SportsBetting.ag
Online sports betting & Live betting odds · Up to $1,000 free on your first deposit
- ✓ 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 SportsBetting.ag
- ✓ Online sports betting
- ✓ Play poker online at SportsBetting.ag – Online poker room
- ✓ SportsBetting.ag is available in English
- ✓ Tested and certified by Casino Bonus Center · Rating: 2.9/5
- ✓ Game Providers: DGS, Visionary iGaming, Fresh Deck, and BetSoft
Terms & Conditions apply · Play responsibly
Rembrandt Casino
A $200 bonus to play on your mobile or your PC!
- ✓ 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 Rembrandt Casino
- ✓ Online sports betting
- ✓ Available in multiple languages, including English
- ✓ Rating: 2.9/5
- ✓ 41 Game Providers: Just for the Win, Oryx Gaming, Gamomat, Hacksaw Gaming, QuickSpin, Pragmatic Play, Thunderkick, Play n GO, Rabcat, Fortune Factory, G Games, Gameburger Studios, and others.
Terms & Conditions apply · Play responsibly
Casino-x
Bonuses, tournaments and contests while you're playing the best 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 Casino-x
- ✓ Online sports betting
- ✓ Available in multiple languages, including English
- ✓ Rating: 2.9/5
- ✓ 29 Game Providers: NetEnt, Games Global, Playson, QuickSpin, Red Tiger, Playtech, ELK Studios, Evolution Gaming, Yggdrasil Gaming, Booongo, iSoftBet, Pragmatic Play, and others.
Terms & Conditions apply · Play responsibly
Betmaster
Get 40 free spins or a weekly $5 free bet for a month, your choice!
- ✓ 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 Betmaster
- ✓ Online sports betting
- ✓ Available in multiple languages, including English
- ✓ Rating: 2.1/5
- ✓ 58 Game Providers: Evolution Gaming, Red Rake, Play n GO, Booming Games, Golden Hero, PariPlay, Kalamba Games, BGaming, QuickSpin, Amatic, Apollo Games, DLV, and others.
Top 10 Online Casino Bonuses in Japan (June 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 June 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 bonuses 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 Casino Fun, Beach Vibes, Gangster Style | Bonus of 225% 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 |
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 |
betsafe The best games, all in a safe place | Bonus of 100% up to $200 + 200 Free Spins |
EnergyCasino 30 free spins plus ¥50,000! | Bonus of 100% up to ¥25,000 |
* 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.
