GREYWAKE / CASE L-09
An original cooperative mystery

The Lighthouse File

A storm report has vanished. Follow the paper trail through a lighthouse archive and find the original before the inspection.

2–6 playersAges 16+6 linked puzzlesPrint & play
Spoiler-free preview page of The Lighthouse File
Early pilot edition · US$5. Independent playtesting is pending in English and Spanish. Play time and difficulty have not yet been measured. Buy the bilingual pilot kit. Writing and layout used AI assistance; read the free sample before buying.

A table full of evidence.

Reconstruct a night of dispatches, examine receipts, trace a maintenance map and recover a torn label. Every answer leads to the next piece of the investigation.

Everyone solves together. The organizer can play without reading the solutions. No acting or assigned character roles.

Inside the pilot kit

10 player pages, a 4-page setup and hint guide, and 3 pages of solutions with a final letter. Each puzzle has three progressive hints.

One story in English and Spanish, each in A4 and US Letter. Black-and-white printing works. Personal use only.

You supply printing, pencils and spare paper. No internet, apps, scissors, locks or hidden props needed during play.

Free standalone puzzle

The spare-key receipt

The keeper left a spare key in one of three envelopes. Only one satisfies every rule. Which envelope should the archivist collect?

The last digit is even.
The first two digits add up to the last digit.
All three digits are different.

This puzzle reveals no answer from the full game.

Choose an envelope

Print the free sample.

The two-page sample includes the puzzle and its separate answer page. The one-page preview contains no game answers. Free to download; no sign-up required.

English files

Print at actual size / 100%, single-sided. The sample is separate from the full game.

Before the full release

CheckCurrent status
English and Spanish puzzle logicAuthor review and automated checks passed
A4 and US Letter filesProduced and digitally reviewed
Independent blind playtestsTwo groups per language still needed
Purchase and automatic deliveryPayPal connected; free download test passed. Pilot checkout available.

No measured duration, human playtest results or buyer reviews are claimed. We will update the offer after independent playtesting.

Help test the lighthouse case.

We're seeking two independent groups of 2–6 adults to try the English pilot, and two groups for the Spanish adaptation. The pilot files are free to testers; printing is at your own expense. No purchase or positive review is required.

Contact the shop with Lighthouse playtest, your preferred language, group size and A4 or US Letter. We'll agree how to share the pilot privately and return feedback. Please keep puzzle answers out of public comments.

Request a playtest copy

Our shop contact form is hosted by Payhip and asks for your name and email. This site itself has no contact form or tracking. Writing and layout were produced with AI assistance; independent human playtesting remains pending.