Inside Japan’s Gambling Scene: The Games Players Actually Choose
The gambling culture in Japan dates back centuries, with many people enjoying traditional games such as Hanafuda, Mahjong, and Shogi.
In the mid-1800s, the country’s gambling environment changed dramatically after Americans arrived during the Perry Expedition. This led Japan to open its ports to trade with the Western world after two centuries of isolation.
The result? A rise in the popularity of Western casino games, such as baccarat, roulette, and poker.
In the early 1900s, a gambling ban outlawed these games and restricted legal gambling to the state lottery, horse racing, and Pachinko parlors. However, gambling is still extremely popular in Japan, with enthusiasts enjoying a host of different games.
5 Gambling Games Played in Japan Today
Here’s a closer look at five gambling games played in Japan today:
Pachinko
Steel balls, rented in bulk, launched into a vertical maze of pins: that’s pachinko in its simplest form. Collect enough balls, and you can trade them for prizes. Thanks to a legal workaround called the three-shop system, you can even exchange them for cash at a separate counter.
Data shows that Pachinko machines alone generated JPY8.2 trillion ($53.1 billion) in 2023. Pachislot machines added another JPY7.5 trillion ($48.7 billion) on top, according to figures from Asia Gaming Brief and Japan’s Yano Research Institute.
While Pachinko still generates a huge amount of money, it is important to note that 20 years ago, people called this the “30-trillion-yen industry.” What remains today is barely a third of that peak, propped up by fewer parlors and a customer base that keeps aging without a younger generation stepping in.
Sports Betting and Blackjack
A stranger in Tokyo can open an offshore casino app and start playing blackjack within minutes. No license check, no waiting period, nothing standing in the way. Try to bet on a J-League match through a private bookmaker, however, and Chapter 23 of Japan’s Penal Code kicks in, making it flatly illegal.
That gap says a lot about how selectively Japan enforces its own rules across different forms of gambling. Online blackjack thrives because there’s simply no domestic online casino law written to stop it, and the same gap allows live dealer platforms to go largely unchecked.
Sports betting sits entirely on the opposite side of that line. In 2021, the Financial Times reported officials were looking into looser rules for baseball and football, with pandemic losses making the idea more politically workable.
Unfortunately, that door has since closed. A 2025 Yomiuri Shimbun report found that lawmakers, led by former PM Taro Aso, had decided to rule out reform altogether in favor of cracking down on illegal offshore betting.
None of that legal tug-of-war seems to be slowing anyone down, though. Interest in blackjack and sports betting keeps climbing regardless of the legal landscape.
Online Slots and Live Dealer Games
Japan doesn’t have a legal domestic online casino market, and outside the forthcoming Osaka resort, it doesn’t have physical casinos either. Yet, there is still a thriving online gambling economy based almost entirely on offshore platforms operating from other jurisdictions.
The scale is bigger than most people would guess. Japan’s National Police Agency estimates around 3.37 million players wager roughly ¥1.24 trillion ($8.39 billion) each year through these offshore sites.
With no physical casinos to visit, a live-streamed table is about as close as most Japanese players can get to sitting across from a real dealer.
Mahjong
Mahjong found its way to Japan from China long ago, and the country made it distinctly its own. Most people don’t play casually at home; they head to a parlor, rent a table for a few hours, and bet against whoever sits across from them, turning it into something of a social pastime as well as a gaming one.
However, this reliance on physical parlors is what’s putting the game at risk now, as it follows the same pattern already hollowing out pachinko.
Statista’s numbers show parlor counts falling from 9,630 in 2015 to 6,510 in 2024, a steady decline with no sign of reversing. What’s kept mahjong itself alive, even as the parlors close, is a shift online. Online, real-money and free-play platforms let people compete against strangers or bots without a physical table at all.
Takarakuji
A child in Japan can walk into a shop and legally buy a lottery ticket, no ID required, no age check at the counter. Takarakuji is the only major betting option in the country built that way, open to literally anyone regardless of age.
That openness hasn’t done much to protect gambling games from decline. Sales came in at JPY809 billion in 2023, well below the roughly JPY1.1 trillion the lottery pulled in back at its 2005 peak.
Official figures show 81.4 percent of Japanese adults have bought a ticket at some point, a number that sounds impressive until you notice most regular buyers today are older adults rather than new players.
Bigger jackpots and online ticket sales haven’t managed to pull in anyone younger. The lottery’s biggest strength on paper, being open to everyone, hasn’t been enough to stop the same aging problem squeezing pachinko and mahjong.
What This Tells Us About Japan’s Gambling Future
When it comes to the future of gambling in Japan, MGM Osaka changes the equation entirely. Set to open in autumn 2030 under licenses granted back in 2018, it’ll be Japan’s first legal casino, arriving as older formats like pachinko and mahjong keep fading.
The timing feels less like a coincidence and more like a country quietly rewriting its own rulebook. Whether sports betting eventually gets a similar green light or stays locked under Chapter 23 indefinitely, one thing’s clear: Japan’s gambling scene has no intention of standing still.