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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
Groove
(Groove Gaming)
iGaming2Go
Intouch Games

Explore 1 Free Bonus

JDB
(Just Do the Best)

Explore 1 Free Bonus

Kambi
(Kambi Group Plc)

Explore 1 Free Bonus

KingMidas
Kitsune
(Kitsune Games Ltd.)
Konami
(Konami Digital Entertainment Co., Ltd.)

Explore 1 Free Bonus

LeapFrog Gaming
Magnet Gaming
(CEGO - Danske Spil Danmark)
MultiSLOT
NeoGames
NowNow
(NowNow Gaming)
NSoft
(NSoft Limited - SportRadar Company)
Oriental Game

Explore 1 Free Bonus

Parlay Games

Explore 1 Free Bonus

Phoenix7
(PHOENIX 7 Malta Limited)
Pipa Games
(Pipa Games Brazil)
Pirates Gold
(Pirates Gold Studios - California USA)
Play Reels
PlayStar

Explore 1 Free Bonus

Playzia
PoggiPlay
Quik
(Quik Gaming)
RedStone
(Red Stone Gaming - Serbia)

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