Whodunnit: The Casebook
A daily murder-mystery puzzle with one provable culprit
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Read the full description
Read the clues, fill in your detective notebook and name the culprit. Every case is checked by a solver, so there is always exactly one answer you can reach by logic alone, with no guessing. A new daily case for everyone, playable as a guest with no sign-up. 50+ levels in 5 chapters, from simple alibis to cases where the murderer always lies. Free, in your browser, no download.
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PH · launched Oct 24, 2026 · 1 upvote (top 67%)
- Media & entertainment
- Content generation
- B2C
- Not AI
- Commercial product
- Puzzle Games
- Free Games
- Games
Similar launches
See all 107 similar launches →Could you build this?
Partial The app UI and puzzle presentation are buildable, but guaranteeing a single logically provable solution for each case requires a custom constraint solver and careful puzzle design. Authoring 50+ levels with quality narrative is substantial content work.
What it would actually take: Model each case as a set of clue constraints and run a solver (for example, a SAT or constraint-propagation engine) to confirm exactly one culprit is deducible without guessing. Generation or authoring pipelines need the solver to reject ambiguous cases. The hard parts are the uniqueness-checking logic and sustained high-quality puzzle and narrative design, which require mystery-writing and puzzle-design skill.
Competitors
Other products that read as similar to this one : 107 launches clear the similarity bar, closest 8 shown.
Attention rank: #45 of 108 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 269 days after the earliest competitor.
- Midnight Casebook · ph · 2026-10-29 · 1 upvotes · similarity 0.70
- Daily Case — A mystery a day · ph · 2026-10-06 · 2 upvotes · similarity 0.65
- Somatry: Cold Case Mystery · ph · 2026-10-22 · 2 upvotes · similarity 0.49
- Clue Mates · ph · 2026-10-10 · 2 upvotes · similarity 0.45
- GuessThatBook: For non-fiction readers · ph · 2026-10-16 · 3 upvotes · similarity 0.45
- Lie of Sight · ph · 2026-10-03 · 1 upvotes · similarity 0.44
- Murder At Mine · ph · 2026-10-15 · 4 upvotes · similarity 0.42
- Puzzle Platter · ph · 2026-09-09 · 2 upvotes · similarity 0.41