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Free Printable Logic Puzzles for Adults (Murder Mystery Edition)
Free murder-mystery logic puzzles you can print or play online — a new floor-plan case every day, five free printable cases, and how these "murder sudoku" puzzles work.
If you like sudoku but wish it had a story, you'll like murder-mystery logic puzzles. Instead of digits you place suspects; instead of a 9×9 grid you get a floor plan with furniture and rooms; and instead of a finished grid, the reward is a name: the killer.
Here's where to find them free, and how to solve them.
1. A free puzzle every day, online
Room for Murder Daily
A new floor-plan murder mystery every morning: place the suspects, find who was alone with the victim. No sign-up, works on phones.
Play today's caseRoom for Murder Daily publishes a new case every day at midnight. Mondays are small 5×5 houses; by Saturday you're working through 7×7 mansions with gardens; and on Sundays the killer lies. Every case is checked by a solver to have exactly one answer you can reach without guessing. You can also print any case from the page and solve it with a pencil.
2. Five free printable cases
Join our e-mail list (the box at the bottom of the home page) and we'll send you a free 5-case printable sampler: the rules, a worked example, five cases from easy to devious — including a lying-killer case — and full solutions. It prints on US Letter or A4.
How the puzzles work
The rules fit on a sticky note:
- One person per row and per column — like sudoku.
- Nobody stands on solid furniture (tables, plants, shelves); chairs, sofas, beds and rugs are fine.
- Every witness tells the truth — "I was beside the piano", "I was alone with Ada".
- The victim was alone in a room with exactly one other person. That person is the killer.
The fun is in the chain of deductions: one witness's statement fits only one square; that rules out a row and a column for everyone else; which pins the next witness; and so on until the last suspect drops into place. Our how to play guide explains every type of clue.
Why adults love them
- They're quick: 5–20 minutes for most cases — a coffee break, not an evening.
- They're fair: no trivia, no word knowledge, no luck — just logic.
- They're social: one person reads the statements, the other places the suspects.
- They're gentle on screens: print them and do them away from the phone.
Want a whole book of them?
Room for Murder collects 80 brand-new cases in five chapters — from cosy cottages to a lying-killer chapter and one grand final case — with a cast of 40 recurring neighbours and answers in the back.
Room for Murder
80 floor-plan murder mysteries in five chapters, from cosy cottages to a lying-killer finale — the book behind this site.
Solo or together
See it on EtsyBigger logic puzzles for a long evening
If a 10-minute puzzle leaves you wanting more, try a case file: one big elimination puzzle with hundreds of records — coats in a 1920s cloakroom, riders on a ghost train, houses on a 1970s street map — and a dozen clues that cross them out until one killer is left. They take two or three hours and make a great date night.
The Cloakroom Killer
Christmas Eve 1929: 800 coats, 12 clues and one killer. A logic-elimination puzzle for a cosy evening.
1–4 solvers
See it on Etsy
The Porch Light Killer
Halloween 1978: find the killer's house on an illustrated street map of 320 homes, using porch lights, pumpkins and 12 clues.
1–4 solvers
See it on EtsyWe make the games mentioned in this guide — that's why we know them well. Links to Etsy go to our own shop, Midnight Motive.