CERT

CERT is an explorable puzzle book!

Discover a surreal, dreamlike world filled with classic deduction-based paper puzzles! You can print it with the provided PDFs, or play through it online here.

Images:

How to play:

- If you're playing online:
- Go to this itch.io page and use the embedded pdf.js viewer.
- The "pen" icon lets you draw on the document. Once you've drawn something you can drag it around the page, which is useful for placing things on grids.
- If you're playing using a downloaded file:
- Download the "PDF (Facing Pages)" link.
- For the best experience, open the PDF in a viewer that lets you draw and scribble on the document.
- If you can't do that, I recommend using a pencil and paper to draw out the puzzles and make notes.
- If you're printing the book on a home printer:
- Download the "PDF (Facing Pages)" link.
- These double pages are designed to print on A5 sheets.
- If you only have A4 paper you can either scale them up or print two-to-a-page (if you do the latter I recommend cutting the sheets in half to avoid accidental spoilers).
- If you're printing the book through a printing service:
- Download the "PDF (Single Pages)" link.
- This document is intended to be printed as an A6 booklet.
- Bleed margins are not included.

Tools used:

- LibreOffice
- penpa+
- Fredericka the Great font
- Liberation sans font
- Inkscape
- GIMP
- Samsung A52s camera

Note:

For rating purposes, the CERT PDF file is both the submitted game and the "source code". The PDF viewer should not be considered part of the submission.

(Post-submission update 2023/10/02 1700 BST: Made three small text fixes in the dictionary. Added a version number to the back cover. Previous versions can be downloaded from github if people would prefer to test the game exactly as originally submitted.)