Best Online Casino in Japan 2021

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The sphere of online casinos in Japan is quite vast, so new players often find it difficult to choose a gambling house where they want to start playing. They are helped by the website, which compiles and regularly updates the top of the best casinos in Japan.

However, the site is not limited to compiling a ranking, but also maintains a blog for players interested in the subject. In this article, we will elaborate on the following of his directions:

  1. Characteristics that determine the best casino.
  • Games from the best developers.
  • Legitimacy and reviews
  • The bonus system
  1. Top 3 casinos in Japan at the moment.

Characteristics that Determine the Best Casino in Japan

Onkaji-matome creates its top based not on personal likes, but on specific characteristics that must be present in a good casino. Then, comparing each other online institutions, experts select the best of them.

6 Games from the Best Developers

There are many good slot machine developers such as NetEnt, Evolution, Yggdrasil, Red Tiger Gaming, Quickspin, Microgaming, etc. It is noteworthy that they only work with the best online casinos, so the presence of their games immediately raises the casino in the top Onkaji-matome.

In this case, these developers also cooperate only with those casinos that conduct their activities legally, which once again confirms its status.

In addition to the usual slots that are available in every casino, a quality gambling house is also supposed to have other genres presented on its platform. Among them can be:

  1. Classic 777 video slots.
  2. Live casino with real dealers.
  3. Online poker
  4. Lotteries
  5. Roulette
  6. Betting on sports

The more choice a player has, the better position he takes in the list of online casinos. However, quantity does not always correlate with quality, that’s why simply having a branch that is represented very sparingly does not give casinos any advantages.

Legitimacy and reviews

Starting to play in online casinos, the player risks not only their own money but also their personal data, which may fall into third hands, in case the casino staff turns out to be cheaters.

That is why making their top Onkaji-matome especially look closely at the following things:


There are many restrictions on online casinos in Japan, but some types of gambling are still allowed, including online slots and pachinko. In addition to this, there are also many excellent offshore gambling sites that have been licensed in other countries.

Obtaining a license always comes with a big inspection, which is then repeated regularly throughout the casino’s operations. This is the most important proof of a casino’s integrity.

Technical support:

Even with the smooth operation of the online casino, players may have various questions about the functionality of the site. And since the casino is available 24 to 7, the same schedule should be used by the support team.

The site team checks their work by asking various questions that players may have at different times of the day.


People rarely leave positive comments under posts about online casinos. They are more likely to do so when buying from a person or store to recommend them to their friends. But negative reviews appear all the time.

The team Onkaji-matome rejects angry comments from players who just didn’t smile at their luck and pay attention to issues such as withdrawal, account security, outages, etc.

Top 3 Casinos in Japan at the moment

If we consider all the casinos available in Japan, the top three are firmly held by the following casinos:

  • 1st place: Bons Casino
  • 2nd place: Casumo
  • 3rd place: Verajohn

All of these casinos have a proper license to operate, are regulated by the relevant authorities and allow Japanese players to play officially. The player can open a deposit not only in U.S. dollars ($) but also in Japanese yen (¥).

All three casinos have a wide selection of slot machines and also have a built-in Live Casino feature. You can read a more detailed review of them directly at

Before starting to play in a particular casino it is strongly recommended to read the terms and conditions of the selected site.

Good luck in the game!

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