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Whodunit Cache Builder

A logic-grid mystery. Finders read the clues and name the culprit.

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Free, just a username and passphrase, no email. Caches you build show up in My Caches so you can reopen and edit them without hunting for the edit link, and watch plays and wins. The same account syncs My Puzzle Texts across devices and manages your short links.

My Caches
Do not put sensitive, personal, or inappropriate content in a cache. Anything you create here is public to anyone with the link, and you are responsible for what you publish. Keep a copy of your edit key, it is the only way to change or delete your cache later.

Play your own cache before you publish it

Settings that look fair in this form can be brutal, or trivial, in the field. Finish the game yourself, start to end, on the kind of device your finders will use, and check that the difficulty, timers, hints, wording, and the final reveal all behave the way you intended. Every cache you create here comes with a play link and an edit link, so you can test it, tune it, and test it again before anyone else sees it.

Finders get a case file of written clues and a logic grid. They cross off what cannot be, find who had what and where, and then accuse the culprit: who did it, with what, and where. You pick three or four lists (suspects, weapons, places, and a motive or a time), how many items each, and the difficulty, from our geocaching cast or your own names. Every case is generated to be solvable by logic alone, and the final coordinates or keyword are released only after the server checks the accusation.

Cache

Shown to players as a link to your cache page.

Only the site admin can see this, in case they need to reach you about your cache. Never shown to players.

Case settings

Names and items

Each wrong accusation costs a strike. Out of strikes, the same case comes back after a two-minute wait.

Every finder gets the same case for your cache. Change the number to deal a different one.

Reveal (shown when they crack the case)

Reveal final coordinates or a keyword
Where can I host images for free?

Paste a direct https:// link to an image. Free image hosts that give a direct link include ImgBB, postimages.org, and Cloudinary. A geocaching.com image link works too. The link must start with https://.

Keep your cache in play to keep it live. Share the play link so people visit it; unused caches are cleaned up over time.

Live preview

Case file

The Case of the Muggled Cache

The clues