Top casinos with bonuses on second deposit · Page 4 of 13
Terms & Conditions apply · Play responsibly
Casino Action
Jump into the Action with up to $1,250 in bonuses!
- ✓ 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
- ✓ Over 1,000 Casino Games Available
- ✓ Live Casino · Play against real croupiers at Casino Action
- ✓ Over $8.8 Million in Progressive Jackpots
- ✓ Available in multiple languages, including English
- ✓ Tested and certified by Casino Bonus Center · Rating: 4/5
- ✓ 39 Game Providers: Ino Games, Real Dealer Studios, Neon Valley, Nailed It!, Gameburger Studios, Infinity Dragon, Snowborn Games, SlingShot, Switch Studios, Games Global, Triple Edge, Buck Stakes, and others.
Terms & Conditions apply · Play responsibly
Cosmo Casino
Unlock 150 Jackpot Spins Today for Only $10!
- ✓ 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
- ✓ Over 1,000 Casino Games Available
- ✓ Live Casino · Play against real croupiers at Cosmo Casino
- ✓ Over $8.8 Million in Progressive Jackpots
- ✓ Available in multiple languages, including English
- ✓ Tested and certified by Casino Bonus Center · Rating: 4/5
- ✓ 39 Game Providers: Snowborn Games, High Limit Studio, Circular Arrow, Barstruck, Triple Edge, Buck Stakes, Nailed It!, NorthernLights Gaming, Pragmatic Play, OnAir Entertainment, Area Vegas, Oros Gaming, and others.
Terms & Conditions apply · Play responsibly
Golden Tiger
Take $1,500 in Bonuses and Win Big with the Golden Tiger’s Luck
- ✓ 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
- ✓ Over 1,000 Casino Games Available
- ✓ Live Casino · Play against real croupiers at Golden Tiger
- ✓ Over $8.8 Million in Progressive Jackpots
- ✓ Available in multiple languages, including English
- ✓ Tested and certified by Casino Bonus Center · Rating: 4/5
- ✓ 39 Game Providers: Snowborn Games, Flip Five Gaming, Neko Games, SlingShot, Infinity Dragon, Blue Ring Studios, Pragmatic Play, Switch Studios, OnAir Entertainment, Gameburger Studios, Oros Gaming, Almond Gaming, and others.
Terms & Conditions apply · Play responsibly
OptimBet
Get an Optimal Start with $500 in Casino Bonuses and Premium Sports Offers
- ✓ OptimBet offers exclusive bonuses for CasinoBonusCenter visitors
- ✓ 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
- ✓ Over 3,600 Casino Games Available
- ✓ Live Casino · Play against real croupiers at OptimBet
- ✓ Online sports betting
- ✓ Available in multiple languages, including English
- ✓ Tested and certified by Casino Bonus Center · Rating: 4/5
- ✓ 55 Game Providers: Pragmatic Play, Amusnet, Endorphina, Amigo, Habanero, OneTouch, Blueprint Gaming, Indigo Magic, Vibra Gaming, Atomic Slot Lab, Skywind, Synot Games, and others.
Terms & Conditions apply · Play responsibly
ReloadBet
Online Sports and Casino Betting · $1,000 Welcome Bonus!
- ✓ ReloadBet offers exclusive bonuses for CasinoBonusCenter visitors
- ✓ 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 ReloadBet
- ✓ Online sports betting
- ✓ Over $24.8 Million in Jackpots by Games Global
- ✓ Available in multiple languages, including English
- ✓ Tested and certified by Casino Bonus Center · Rating: 3.9/5
- ✓ 56 Game Providers: NextGen Gaming, Tom Horn, Red Tiger, VIVO Gaming, QuickSpin, Spribe, IGT Interactive, Amusnet, King Show Games, Givme Games, NolimitCity, Oryx Gaming, and others.
Terms & Conditions apply · Play responsibly
JooCasino
Begin Your Ocean Adventure with $6,000 in Bonuses
- ✓ 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 JooCasino
- ✓ Available in multiple languages, including English
- ✓ Rating: 3.9/5
- ✓ 96 Game Providers: Gaming Corps, BGaming, Absolute Live Gaming, GameArt, Igrosoft, TaDa Gaming, SmartSoft Gaming, Push Gaming, Hacksaw Gaming, 1X2gaming, Revolver Gaming, 3 Oaks Gaming, and others.
Terms & Conditions apply · Play responsibly
Merlin Casino
Feel the Spell of Big Wins with Wager-Free Bonuses, Free Spins & Daily Promotions
- ✓ 20 Free Spins · No deposit required
- ✓ Bonus Code: SPINS20
- ✓ Merlin Casino offers exclusive bonuses for CasinoBonusCenter visitors
- ✓ 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 Merlin Casino
- ✓ Online sports betting
- ✓ Available in multiple languages, including English
- ✓ Rating: 3.9/5
- ✓ 125 Game Providers: Wizard Games, Peter and Sons, Betsolutions, Aviatrix, Yggdrasil Gaming, Eurasian Gaming, Nemesis, SpinLogic, Red Rake, Mr Slotty, UpGaming, Fazi Interactive, and others.
Top 10 Online Casino Bonuses in Japan (March 2026)
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 2026. BitStarz, Zodiac Casino, and Casumo 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 |
Casumo Play in Colour | Bonus of 100% up to $300 + 20 Free Spins |
SnatchCasino Casino Fun, Beach Vibes, Gangster Style | Bonus of 200% up to $1,000 + 100 Free Spins |
InterCasino 50 Free Spins — No deposit required | Bonus of 100% up to $500 |
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 No-deposit Free Spins for New Japanese Players | Bonus of 100% up to ¥25,000 + 400 Free Spins |
* Terms & Conditions Apply · Play responsibly
With over 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.
