Mysterium Registration

Registration is temporarily CLOSED. Please check back in a week for more info.

For information about our hotel, click here

For information about the convention schedule, click here

For information about T-shirts, click here

NOTE: T-shirts and activity books bought online are only available for pickup on-site by attendees. Unfortunately, we are not able to ship shirts or books.

Early-bird registration will be available until April 30:

  • A standard registration ($30) will cover admission for the weekend and include any available pre-registration swag (see below)
  • A premium registration ($45) also includes one Mysterium 2021 t-shirt in your choice of size and cut (unisex or women’s)
  • T-shirts may also be purchased separately for $20

Regular registration will be available from May 1 until July 9:

  • A standard registration ($30) will cover admission for the weekend only. No free swag will be guaranteed, but we may have extras on-site.
  • T-shirts will no longer be available for pre-order, but we may have a small number of extras available on-site.

After July 9, all pre-registration will close. It will be possible to register at the door for the regular registration price ($30).

You can view our refund policy on our Policies page.


The safety and well-being of our attendees is of utmost importance to the Mysterium Committee. As the state of the coronavirus is continually evolving, it is difficult to determine exactly how events or gatherings may look in July. That said, we reserve the right to require attendees to provide proof of vaccination against COVID-19 or a negative test prior to issuance of a badge and admission to the event space. Any such proof will be used solely for verification and will not be stored by either The Mysterium Convention or Falling Man Group.

Badge Pronouns

We strive to ensure that Mysterium is an enjoyable and welcoming environment for all. To that end, this year we are again including a space for pronouns on our badges. This is optional, and you can leave the field blank during registration if you wish. However, we encourage everyone to include their pronouns – by sharing our pronouns, we help others feel safe doing the same and foster a more inclusive community.
Please list your pronouns in the following format: “She/Her”, “He/Him”, “They/Them”, etc.


The swag that is included with early-bird registrations has varied over the years, from conbooks to lanyards. We are still determining exactly what will be included this year, but we are planning to once again produce a set of enamel pins. We will be using the pin designs originally submitted for Mysterium 2020, which you can see in this blog post.

Activity Books

We are putting together a Cyan-related activity book for this year. It’ll contain pages such as word searches, coded messages, and coloring pages. Feel free to submit your own pages to the book! Submissions are open until April 25, and you can find more information here.

Registration Rollover

If you purchased a Mysterium 2020 registration and chose to roll it over to 2021, please do not purchase another registration. If you aren’t sure if you rolled your registration over, hold off for now; we will be contacting you in the next few weeks to confirm.