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The Posthumous Investigation

Play modes: singleplayer

Release Date: 31-3-2026

Developer: Mother Gaia Studio

steamwebsite

Our verdict

8/10

  • Difficulty: Medium
  • Players: 1
  • Playtime: 8–15 h

The Posthumous Investigation is a hand-drawn noir time-loop mystery set in Rio de Janeiro in 1937. A dead man hires you to solve his own murder, and you have one day, which repeats, to work it out. You learn the schedules of fourteen suspects, spot where their stories contradict each other, link evidence on a Thinking Board and make an accusation. It is loosely based on the work of Brazilian author Machado de Assis and suits solo players who like deduction games such as Return of the Obra Dinn.

Evidence is thin: 96 Steam reviews, about 90 percent positive, but only three written reviews are available here. Those reviewers praise the art direction and the layered, flawed characters. They also say the case grows bigger than it first looks, since the victim had a lot of enemies.

The main complaint is repetition: later loops can mean skipping through the same dialogue to ask one missing question, and some suspects are only available at certain times. Players logged around ten hours or more. At its price, it is a strong pick for fans of time-loop deduction games and literary noir, and a sale buy for everyone else.

Pros

  • Fourteen suspects with their own daily schedules to track
  • Thinking Board for linking evidence, with no hand-holding
  • Distinctive hand-drawn 1937 Rio setting and sharply written cast

Cons

  • Later loops mean skipping repeated dialogue to ask one question
  • Some suspects can only be reached at certain hours

About

From the Steam store page · View on Steam

Master the Time Loop: You have one day to solve the crime. Learn the schedules of 14 unique characters, spot their contradictions, and manipulate their routines. Keep your knowledge when the day resets and stay one step ahead of the killer.

No hand-holding. Use your "Thinking Board" to link evidence, reconstruct the timeline, and accuse the culprit. Only pure logic will free you from the loop.

A Living Literary World: Experience a satirical, witty, and dark adaptation of Brazil’s legendary author, Machado de Assis. Your investigation takes you through a hand-drawn 1937 Rio de Janeiro that drips with style, sarcasm, and atmosphere. There is no single correct answer: every accusation has its logic, and the truth is yours to define.

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The Posthumous Investigation
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