Murder Matrix

A cozy logic deduction puzzle for iOS.

One location. A handful of suspects. A permutation puzzle to solve. Each clue narrows the grid until only the victim's square remains — and the murderer is whoever shares their room.

Download on the App Store

Features

Six Original Locations

Each with its own pastel palette and floor plan. A new setting, a new set of rules.

Procedurally Generated Puzzles

Every case is unique, with one guaranteed solution. No two games are the same.

Three Difficulty Tiers

Rookie, Detective, Mastermind. Start easy, work your way up.

Daily Challenge

One fresh case every day with a shareable seed. Compare your solve time with friends.

No Ads, No Tracking, No Accounts

Just puzzles. Your attention stays on the case.

Designed and Built Solo

Pure SwiftUI, no third-party dependencies. Built from first principles.

Murder Matrix screenshot 1
Murder Matrix screenshot 2
Murder Matrix screenshot 3

How to Play

1

Read the clues.

Each suspect tells you something about where they were standing.

2

Place them on the map.

No two suspects share a row or column. Tap an empty square to place a suspect.

3

Find the victim.

When all but one suspect is placed, the empty square reveals itself. Whoever shares that room is the murderer.

Support

For questions, bug reports, or feedback about Murder Matrix, please email — I read every message and aim to reply within 48 hours.

Send the seed (visible in the puzzle's settings menu) and I'll investigate. Every puzzle is generated with a verified solution, so if something looks wrong I want to know about it.

Progress syncs via iCloud automatically. If iCloud is signed in, deleting and reinstalling the app will restore everything.

Yes — new locations and case packs are planned in free updates.

Currently iPhone and iPad only. Mac (via Catalyst) is being considered.

Privacy Policy

Effective May 4, 2026

Summary

Murder Matrix does not collect, store, or transmit any personal information.

Data We Collect

None. There are no accounts, no analytics, no tracking, and no advertising identifiers.

Data Stored on Your Device

The app stores your puzzle progress, completed cases, settings, and statistics locally on your device using Apple's SwiftData framework. This data never leaves your device unless you have iCloud sync enabled.

iCloud Sync

If you are signed in to iCloud, your progress may sync across your Apple devices via Apple's CloudKit. This data is encrypted and only accessible to you. The developer of Murder Matrix has no access to it.

Third-Party Services

None. Murder Matrix uses no third-party SDKs, analytics services, or advertising networks.

Children's Privacy

The app is suitable for all ages and collects no data from any user, including children.

Changes to This Policy

If this policy is ever updated, the change will be posted here with a new effective date.

Contact

Privacy questions:

Designed and developed by Yigitalp Korpe.

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