Shorah and hello!
We are so excited to bring Mysterium to Portland, Oregon for 2026. We’re already rolling on the planning and are thrilled about some of the fun things we have planned for this coming year.
Credits: Local celebrity, the Unipiper, playing flaming bagpipes, shows the heart of Portland.
2026 Theme Announcement
The theme this year is Haven, the prison age from Myst IV: Revelation. It seemed appropriate, as Portland is a temperate rainforest.
MTA
The MTA will be returning to Mysterium this year! First launched in 2017, the MTA stands for Mysterium Travel Agency (or the Mysterium Transit Authority, depending on the day) and it focuses on a bit of a travel agency theme. So, while the theme is Haven, expect a bit of travel agency vibes to accompany it this year.
Submissions
Submissions are open! We are now accepting submissions for the following:
- T-shirt designs for both front and back
- Enamel pins
- Events
- Activity book pages
- Writing and Art Table
Yes, we’ll be printing an activity book this year! So if you have some ideas for that, now’s the time to make it happen. Please head on over to the submissions hub for more detailed information and how to send in your entry for any of the categories.
Downloadables
We’ve added the puzzle packet from 2025 to the downloadables page on our website! Head on over if you’d like a challenge.
We’ve got so much fun stuff in store for you this year!
Have a great weekend!
Kelly & Drea
2026 Mysterium co-chairs