Recomended casino

With Onkaj’s list of recommended casinos in Japan, you are sure to find the perfect casino for you.

Choose the best gambling sites with us!

Let us help you choose the best gambling site for your Japanese players. To help you choose a safe and reliable site, please refer to our table. Below is our list of recommended casino and sports betting sites.

Our experts have spent dozens of hours on the Internet to select proven and reliable casinos for you.

Table of Contents


How did you choose the best gambling sites?

At Casino-Studio, we only feature the best gambling sites serving players in Japan.

Each casino we offer has been vetted by our experts. From registering an account, depositing, playing in the casino, and withdrawing, to KYC verification. This way you can save a lot of time and money.

We understand that for beginners the world of gambling can be very complicated, but we make it as easy as possible.

Having problems with terms such as first deposit bonus, KLM, ALM, KYC, and rtp? Don’t worry, after reading our article you will be able to pass the gambling exam.


Recommended Gambling Sites

Our table shows the gambling sites we recommend, where you can choose between the best bonus payment methods and free money.

Recommended Online Casinos:

% up to Up to $777 Bonus + 77 Free Spins
% up to Welcome bonus: starting 20% cashback up to 10,000 USDT
% up to ¥1,500 No deposit required


Gambling Bonus

Gambling bonuses vary between cash-in and cash-out and are also equal depending on the amount deposited.

Below you will find a variety of gambling bonuses to suit your needs. Please read carefully to choose the best bonus for your type of game.


Online Gambling Basics

Read our glossary to learn more about the world of virtual entertainment. Doing so will help you play better in the casino.

Here is Wikipedia’s description of gambling

Gambling – Any cash game in which the winnings are randomly determined by an algorithm that mimics chance or random outcomes. The word “gamble” is derived from Arabic.”az-zahr” means “dice” or “dice play”. The English word “Gambling” means “risk”.

Simply put, gambling is betting money and hoping to win more.

Gambling comes in many forms, but there are elements common to all of them, and here are some of them.

Bet: The amount of money you may risk.

Rules: It is the rules that determine whether you win or lose your bet

Risk: You can lose what you bet or win more money.

Example: The simplest example is that you and a friend toss a one-dollar coin. You, the tosser, choose the Eagle and your friend chooses the Tail. If the toss is an eagle, you win the given wager. If heads are heads, your friend wins.

It is that simple.


Various types of gambling

Gambling has become very popular around the world, thanks to the Internet, which has made online entertainment accessible to a wide range of people.

You no longer need to travel to Las Vegas or Macau to play at home.

Online casinos offer a wide variety of games, from popular games like slots, roulette, baccarat, craps, and blackjack to sports betting.

New players enjoy a variety of benefits, the basis of which are bonuses, the most popular of which are first deposit bonuses and no deposit required.



Slot machines are the most popular gambling games you can play in online casinos.

No preparation is required to play slots.

and simply press a button to play.

The game requires no strategy or strategic knowledge.

The most popular slot games in Japan are Moon Princess and Hawaii Dreams.


Tedbet offers at least 2,500 slot games and 200 free spins for new players.


Sports betting

Unlike slots, sports betting allows players to create their own strategies. If you know your team and are passionate about it, you can use that knowledge to play in the casino.

How do I place a wager?

It is very simple, just choose a team, pick a wager, and place your bet.

Results are obtained after the bet is settled, usually after the game has ended.

You can bet on a variety of sports, including soccer, horse racing, motor racing, tennis, and more.



We have a great offer for Japanese players. First-time betting players can place the equivalent of $100. If they lose, the bet amount will be returned to the player account, up to $100.



Blackjack is another well-known gambling game, the so-called blackjack, or 21-point game.

There are many different strategies for playing blackjack, such as card combinations, which unfortunately do not apply in online casinos.

But if you want to read more about this, click on this link.


Casino Secret is one of the best casinos in the Japanese casino market, with a wide range of cashback promotions and blackjack tables.

In most of the above games, players play against the casino.

The only difference is in poker, where players can play against other players.

Thus, when playing poker, one has the best chance of winning money.

In other casino games, players are at a slight disadvantage because they have to pay the casino’s operating costs.


How can I play online games?

Now, thanks to the Internet, we can do almost all of our gambling from the comfort of our homes.


In this short guide, you will learn how.

  • Choose the right gambling site for you
  • Register a player account
  • Deposit money
  • Play your favorite games
  • Verify your account
  • Make a Withdrawal


Choose a safe and reliable gambling site

We only present safe gambling sites on our website.

These sites are licensed by Curacao, which guarantees the highest level of entertainment.

Read our casino rankings.

You will be able to choose the casino that best suits your preferences.

Each review includes the opinions of experts as well as the unique opinions of players so you can choose the best casino for you.

You can also contrast your opinion with those of our users by leaving comments on our games.



Clicking on the large registration button will take you to the casino website.

On the casino page, you will see a registration button, followed by a registration form that will pop up.

This form will ask you for the following information:

  • Login
  • Date of birth
  • Home Address
  • Email Address
  • Phone number

and sometimes additional information such as occupation.

Be sure to enter your real information.

You are playing for real money, so do not make it up.

Remember to make your password hard to guess.

IMPORTANT TIP: At this point, some sites require you to specify whether or not you want to claim the bonus.

You must select this option “now” in order to receive your bonus.


The next step is to verify your account

The casino will send an email to your email address with an activation link.

Click on this link and follow the instructions.

In many cases, casinos also use text message number verification.

In this case, the casino will send you a code by SMS, which you should enter in the appropriate place on the website.

If you have completed all of the above tasks, congratulations! You have opened your first account at the gambling site and can slowly start playing.



If you decide to play for real money, you can deposit at this time.

Otherwise, you can play with no deposit required bonus, our site has a number of such offers.

Deposit and withdrawal methods vary with each gambling site, but the most popular are:

  • Bank transfer
  • Debit cards such as VISA and MasterCard
  • E-wallets: PayPal, Skrill, Neteller
  • Venus Point
  • PayPay
  • Jeton

All payment methods will be discussed in a separate article, but here we have chosen only the most popular ones.

Choose the one that suits you best and that also has funds available. Pay attention to deposit and withdrawal limits and fees.


How do I make a deposit?

  1. Making the actual deposit is very easy.
  2. Go to the Deposit window.
  3. Choose your deposit method.
  4. Choose the amount you wish to deposit.
  5. Click Deposit.

(Optionally, you may be asked to select a bonus at this point)

We recommend that you make your payment in cryptocurrency, especially in Japan.


Eldoah is a tried-and-true brand in the Japanese market, offering light accounts that can be opened without document review with cryptocurrency deposits.

Once the withdrawal process is complete, the money should be transferred to the player’s account.

Please note that Bitcoin and cryptocurrency payments can take a little longer, sometimes up to 30 minutes.

You may also need to send proof of encrypted payment.

We will explain how to do this in this issue.


Apply for a bonus

As mentioned earlier, casinos offer bonuses to encourage players to play.

New players can receive a bonus based on their first deposit, as well as the very popular registration (no deposit bonus).

The no-deposit bonus is popular in Japan and is usually worth $40 offers a $40 free deposit bonus for Japanese players. Simply create an account and register, and the bonus amount will be credited to your account instantly.

In this article, we will explain the bonus in detail, including the types of bonuses, conditions for granting bonuses, and spins.



As mentioned earlier, casinos offer a wide variety of games.

Sports betting, slots, roulette, and dice games are just some of them.

To start playing Select the game you want to play and the wager you want to place.

Before risking your own money, it is a good idea to play with free money.

These are called no-deposit required bonuses and allow you to familiarize yourself with the game and its rules.


Withdrawing prize money

You can withdraw your winnings at any time during the game.

Withdrawal options may differ slightly from deposit options. In other words, please note that withdrawal options are less than deposit options.

Depending on the casino and withdrawal method, withdrawals may take several hours to several days.

Note that some withdrawal methods allow for faster withdrawals.

For example, withdrawals in cryptocurrency will naturally be faster than withdrawals to a bank account.


Verify your account

Account verification, also known as KYC (know your customers).

The casino needs to verify that you are the account holder and therefore requires documentation from the player.

The only exception is the aforementioned Crypto casino, where you can withdraw money without verification.

Most casinos offer withdrawals only after verifying your account, and to do this, prepare the following documents

Proof of identity: passport or other identification required by law.

Proof of address (water, gas, electricity, etc. bills are acceptable)

Proof of payment (screenshot of online wallet, bank transfer, etc.).

Once you upload the relevant documents, the casino will have time to review them.

Sometimes this is done automatically, other times it may take several hours. If everything is successful, the money will be transferred to your account.



Deposits at online casinos are secure, especially at the casinos we recommend.

Deposits usually take a few seconds and withdrawals may take longer.

Depending on the type, you may have to wait a few days to several days.


Why Play Online?

Below we outline the advantages of playing online compared to traditional casinos.

  • Available 24 hours a day, 7 days a week on your smartphone or computer
  • Greater selection of games
  • New games
  • Lower bets
  • Max bets
  • Bonuses available

No deposit required bonus also allows you to play for free and learn the rules of the game.

Casino-studio only lists casinos that offer services to players in Japan.


Frequently Asked Questions / Gambling Frequently Asked Questions

What type of gambling is legal in Japan?

Legal gambling in Japan includes, among other things, sports betting.

Horse betting, Cycling, Motor betting


Is gambling at casinos illegal in Japan?

Currently, there is no clear-cut regulation on whether gambling at casinos is legal or not; this is known as the gray zone.

Since most casinos are based outside of Japan, they are not subject to Japanese law.


How can I find the best gambling sites in Japan?

Thanks to our site and our casino ranking, you can find the best sites serving Japanese players.

Most importantly:

  • Bonuses
  • Payment Methods
  • Ratings
  • Casino Reputation


Is there a tax on gambling in Japan?

Online casino winnings are subject to interest as temporary income. However, if the amount does not exceed 900,000 yen, there is no need to file a tax return.


How to make money at a casino?

Remember that gambling is a form of entertainment and all the secret ways to win money are not worth much.

Gambling always involves risk and is not a substitute for income.

If you really want to make money gambling, open a casino rather than gambling.


What are the most important criteria for the best gambling sites?

  • Casino Reputation
  • Bonus
  • Deposit and Withdrawal Methods


Meet Onkaji-san: The Masterful Casino Player!

Onkaji-san is a renowned master in the gambling world, with incredible insight, analytical skills, and great knowledge of the game. He is a player who understands the importance of planning and careful analysis, and he approaches each play with a thoughtful approach

Born and raised in Japan, Onkaji-san became interested in mathematics at an early age. As an adult, he was drawn into the world of gambling, where he discovered a natural talent for exploring possibilities and possibilities.

Onkazi-san’s unique approach to casinos has earned him a reputation as one of the most successful players in the business. He understands the importance of keeping a cool head in the face of adversity, and never attacks his feelings.

In addition to analytical skills, Onkaji-san has a deep knowledge of the game, including all the rules, strategies, and nuances that can make the difference between winning and losing He is a keen observer, often wearing their next move based on the opponent’s body language and other subtle cues

Despite his success, Onkaji-san remains humble and approachable. He is always happy to share his knowledge and expertise with others and is more than happy to guide new players through the intricacies of the gambling world

Whether you’re an experienced player or new to gaming, Onkaji-san is someone you want on your side. With his thorough insights, mathematical skills, and deep understanding of the game, he’s a true master of the art of casino games, whose skills and knowledge are sure to inspire and guide players for years to come.

Don’t forget to check the best-picked offers on those verified gambling sites: