Page 17 of 18 · Software providers: 433

This list includes the number of casinos powered by each provider, and the number of online casinos where you can play for free. The list is sorted by number of casinos.

* Note: Some casino software providers have restrictions on where their games can be offered.

Top game providers in Japan by number of casinos
Software Casinos Free coupons
Konami
(Konami Digital Entertainment Co., Ltd.)

Casino count: 1

Free Bonus
LeapFrog Gaming
Casino count: 1
Magnet Gaming
(CEGO - Danske Spil Danmark)

Casino count: 1
MultiSLOT
Casino count: 1
Nemesis
(Nemesis Games Studio - Italia)

Casino count: 1

Free Bonus
NeoGames
Casino count: 1
NowNow
(NowNow Gaming)

Casino count: 1
Oriental Game
Casino count: 1

Free Bonus
Parlay Games
Casino count: 1

Free Bonus
Pascal Gaming
Casino count: 1
Phoenix7
(PHOENIX 7 Malta Limited)

Casino count: 1
Pipa Games
(Pipa Games Brazil)

Casino count: 1
Pirates Gold
(Pirates Gold Studios - California USA)

Casino count: 1
Play Reels
Casino count: 1
PlayStar
Casino count: 1

Free Bonus
Playzia
Casino count: 1
PoggiPlay
Casino count: 1
Quik
(Quik Gaming)

Casino count: 1
RedStone
(Red Stone Gaming - Serbia)

Casino count: 1
Rich88
Casino count: 1

Free Bonus
Sega Sammy Creation
Casino count: 1
SimplePlay
(SA Gaming Group)

Casino count: 1
Solidicon
(Solidicon AB, Sweden)

Casino count: 1
Spinarium Originals
Casino count: 1
SpinStar Originals
Casino count: 1

Top 10 Online Casinos in Japan (May 2025)

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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. Zodiac Casino, bitStarz, 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.

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Online Casinos JapanWelcome Bonus

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* 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.