We’re doing another activity book for Mysterium 2026! Feel free to submit a coloring page, word search, crossword, or any other activity you can think of!
Note: If you submitted a page for any previous Activity Book and wish for it to be included in the printed book this year, you will need to re-submit it.
General Submission Rules
- Entries must be submitted to art@mysterium.net by May 15, 2026, unless special arrangements are made beforehand. Please use the subject “Activity book submission”.
- Please include the name of your page (if any), and how you would like to be credited.
- Entries not meeting submission guidelines will be rejected, and the submitter will be notified.
- Direct screenshots from any of the games are not allowed.
- Absolutely no AI-generated images are allowed. No exceptions.
- The Committee reserves the right to make design adjustments as needed to facilitate printing.
- All submissions we receive are considered to be licensed for our use as described in our submissions policy.
- You may submit as many pages as you like.
- All puzzles should also include a solution.
- While pages are not required to match the convention theme, submissions that do are preferred.
File Formats
Our preferred file formats are: .id, .ai, .pdf, .psd, .ps, .eps, .svg, .doc, .odt
We will also accept: .png
Other formats will not be accepted
Design Requirements
- Entries must be high quality if it’s an image (300 DPI minimum for raster images), however, vector images (.svg, .ps, .eps, .ai) are strongly preferred. If your entry is a text-based submission, the committee may change the font used in the entry.
- If you choose to use a raster image, design it to fit at least an 8.5×11″ page at 300 DPI
- Line width should be at least 6 pixels
- Pages should be grayscale only