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Solve the puzzles in the envelope and obtain the key to open the MYSTERY MAIL BOX!
MYSTERY MAIL BOX Global Edition released!! A version of the game that has both English and Japanese instructions. The game can be played if you can understand simple English or Japanese. A compilation of puzzles that are based on intuition - an experience of the world's standards.


A bunch of suspicious red boxes lined up against the wall on the 2nd floor of the Tokyo Mystery Circus.
These are mailboxes that receive the letters from the residents of all many kinds of stories.
If you can solve puzzles from the envelopes, and find the keys with your own hands, you will be able to open the door to the boxes.
When a door opens, the next story awaits you. When the last door is opened, you will become part of the story as well.
*We are not able to take responsibility for any accidents or stolen game kits during your participation. Please be careful when you play the game.

Style of play:

① Exchange your tickets for a game kit (envelope) at the reception counter on the 2nd floor.
② Solve the puzzles that are in the game kit's envelope.
There may be times where you have to search around the Tokyo Mystery Circus building, and cooperate with other people to solve some puzzles.
③ Upon finding the answer to the MYSTERY MAIL BOX and opening its door, another story will be waiting for you.
④ You will clear the game if you can reach the final answer.
*The staff in Tokyo Mystery Circus do not have puzzles or hints on them.


Tokyo Mystery Circus

Event dates:

Japanese & English Versions:15 March 2018 onwards

Things to Note:

*Please reach the venue within the time of the session you bought tickets for. (1 hour frame)
*Please note that after a ticket is bought, we are unable to change or refund it if it is due to the customer's personal circumstances.


Ticket prices:

*Advance or on-the-day tickets are of the same price.

Time limit:

There is no time limit for this game.

Buying your tickets

Advanced sales -

Online : Tokyo Mystery Circus


At-the-door sales -

If advanced sales tickets are not sold out, they will be sold at the door. Please see here to check the availability of at-the-door tickets.


Tokyo Mystery Circus

APM Building , 1-27-5, Kabukicho, Shinjuku, Tokyo, Japan 160-0021


Q) Is there a time limit?
A) There is no time limit for this game. It may take awhile to compeletely clear the game, so please give ample time to play this game. Although the game should not take more than a day to finish, if you run out of time personally, you can continue from where you stopped on another day.

Q) We want to play in a group. Do we need to buy a game kit for every player?
A) You'll enjoy the game better by purchasing a game kit for everyone!

Q) Can I reveal the puzzles on my blog or on Twitter?
A) Spoilers are prohibited for this game. Do not upload answers or photos of the puzzles to your blog, Facebook, Instagram, Twitter, or any other digital platform. Please also be careful when you discuss the answers to the game after it has ended. There will be many players in the same floor or facility who have not tried the game yet!

Q) I lost my game kit halfway through the game. Can I receive a new one?
A) Sorry, but we are unable to replace your lost game kit. Please purchase a new one to continue playing the game.

Q) Can we get hints?
A) A "hints page" is available, so please use it if you are stuck on a puzzle. More details on the hints page can be found in your game kit.

Q) Can children or non-Japanese play?
A) If the child can read and write, they can play. This game is available in both Japanese and English, so non-Japanese can choose to play the English version!