Detective games that make you think

Plenty of detective games let the detective do the thinking. These don't. Here's what makes a detective game genuinely clever — and which ones to play.

  • By the UnMask team
  • Updated October 2026
  • 6 min read
You're the detective.No hotspots. No luck.
The short answer

The best detective games give you fair clues and let you prove the answer yourself. For iPhone and iPad, UnMask does exactly that: murder mysteries solved with logic, with 800 cases free.

What makes a detective game good

Kinds of detective games

"Detective game" covers a lot. Here is how much thinking each kind asks of you.

KindBest if…Thinking
Logic detective gamesUnMaskyou want to prove the answer
Story-driven investigationsyou love interviews and plot twists
Board games and case filesyou play with friends around a table
Hidden-object gamesyou want a relaxed search

Detective games that make you think

  1. UnMask

    iPhone & iPad

    Murder mysteries solved on a floor plan: every suspect makes a true statement and one of them did it. 800 cases free.

    Play the free tutorial case
  2. 2

    Sherlock Holmes Consulting Detective

    Board game

    Read the case files with friends, follow leads around London and race Holmes to the answer.

  3. 3

    Murdle

    Books

    G.T. Karber's series of tiny murder mysteries solved with a deduction grid.

  4. 4

    Classic logic grid puzzles

    Print

    Pencil-and-paper deduction from puzzle magazines like Dell and Penny Press.

Be the detective tonightThe free tutorial case takes about five minutes.
App Store

Think like a detective

Good detectives don't leap to the most suspicious person. They write down what is certain, rule out what is impossible and only then look at what's left. In UnMask that habit is the whole game: place who you can, cross out the cells that can't hold anyone, and the killer appears in the gap.

An UnMask board: suspects placed on a hotel floor plan
Certain first, impossible second, killer last.

Why UnMask

Story seasons in UnMask on iPhone

UnMask is a detective game where you do the deducing. Story seasons give you a mystery that unfolds case by case; cold cases give you a quick puzzle whenever you have ten minutes.

  • 800 free cold cases
  • Story seasons with a full mystery arc
  • Hints that explain, never spoil
  • Made for iPhone and iPad

FAQ

What is the best detective game for iPhone?

If you want to solve the case yourself with logic, UnMask: murder mysteries on a floor plan, made for iPhone and iPad, with 800 free cases.

Are there detective games without hidden objects?

Yes. Logic detective games like UnMask skip the searching entirely: every clue is a statement, and you solve the case by reasoning.

Is UnMask scary?

No. The cases are cozy rather than grisly: no gore, just suspects, rooms and logic. Beginner cases suit anyone who enjoys a sudoku.

Start with the free tutorial case

Tonight's case is waiting, detective.

Pour a cup of tea, open the case file and see who really was in the armchair.

Download on the App Store