Shadows in the Gallery
A Cosykiller One-Box Mystery Experience
£45.00
- For 1–3 Players, play solo, as a couple, or with friends
- Case file style, designed for deep-dive investigation and replayability
- Challenging perfect for puzzle lovers and seasoned detectives.
- For Teen and up (designed for adults)
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A Cosykiller One-Box Mystery Experience
Europe, 1946. The war is over—but not all secrets were buried.
Step into the shadowy world of the Monuments Men, the real-life heroes who risked everything to rescue Europe’s stolen treasures. Decades after the guns fall silent, a bricked-up German cellar is breached, revealing the remains of a missing American officer—and a trove of cryptic clues that land in your hands. In the aftermath of WWII, the Monuments Men scoured Europe to save priceless art from destruction. But not every masterpiece was recovered—and not every hero made it home.
Now, you’ve inherited the final clues to a decades-old mystery
Can you crack the codes, connect the clues, and solve the cold case that history left behind?
Immersive Solo Narrative
Become the detective in a gripping, historically-inspired story where every artifact tells a tale.
Authentic Replica Documents
Telegrams, coded letters, photographs, postcards, and more—painstakingly recreated for a hands-on experience.
Challenging Puzzles
Decipher ciphers and codes based on real Allied techniques—playfair, knock code, letter substitution, caesar ciphers, and more.
Historical Research Tools
Newspaper clippings, suspect profiles, and wartime records to help you piece together the mystery.
No Digital Needed
100% offline play—no websites, no apps, no “support pages gone missing.” All solutions are sealed in the box.
Support & Community
Need a hint? Reach out to the Red Herring Games team or join fellow sleuths in our Cosykiller Facebook group.
Introduction to Shadows in the Gallery
Whats in the box
- 4 Photographs
- 1 Field Guide
- 5 Postcards
- 2 Newspaper Articles
- Map & Poster
- List of Missing Artworks
- 12 Military Documents
- Telegram & Coded Note
- Code Solutions Notebook
- Final Solution Envelope
Why Choose Red Herring Games?
Award-winning design
Created by our in-house crime-writing team with 18 years of experience and a passion for immersive storytelling.
Customer support
We’re here if you need help—no bots, just real people (and occasionally our office dogs).
Offline gaming
No digital components. Everything you need is in the box
Replay-ability
once solved you have the answer, but there is no requirement to damage any of the contents to solve the case, which means you can pass on the game to a friend to enjoy.