Buy The Posthumous Investigation PC Key

Where can you buy cheapest The Posthumous Investigation PC Steam key? Check and compare prices from 10 stores to locate the best and the cheapest option for you among 10 offers featured on XD.deals. Now the lowest The Posthumous Investigation PC price on keyshops can be obtained on A$8.24 (71% off) and on official stores can be obtained on A$20.57 (30% off).

Release: 31 Mar 2026
Metacritic:
77 8.1
Buy in Official Store:
-30%
A$20.57
Buy in Keyshops:
-71%
A$8.24
See price history

Official Stores (5)

DRM:
Steam
Steam
Green Man Gaming
The Posthumous Investigation
Windows
1w ago
DRM:
Steam
Green Man Gaming
A$29.50 A$20.57
-30%
GamersGate
The Posthumous Investigation
Windows
2d ago
DRM:
Steam
GamersGate
A$29.50 A$25.73
-12%
-10% with XDD10copy
-10% with XDD10copy
WinGameStore
The Posthumous Investigation
Windows
2d ago
DRM:
Steam
WinGameStore
A$28.61
Steam
The Posthumous Investigation
Windows
2w ago
DRM:
Steam
Steam
A$29.50
Allyouplay
The Posthumous Investigation
Windows
10w ago
DRM:
Steam
Allyouplay
A$29.50

Keyshops (5)

DRM:
Steam
Steam
Yuplay
The Posthumous Investigation
Windows
2d ago
DRM:
Steam
Yuplay
A$28.61 A$8.24
-71%
G2Play
The Posthumous Investigation PC Steam CD Key
Windows
8h ago
DRM:
Steam
G2Play
A$31.77 A$9.89
-68%
-8% with XD8DEALScopy
-8% with XD8DEALScopy
Kinguin
The Posthumous Investigation PC Steam CD Key
Windows
8h ago
DRM:
Steam
Kinguin
A$31.77 A$9.89
-68%
-8% with XD8DEALScopy
-8% with XD8DEALScopy
Driffle
The Posthumous Investigation (Global) (PC / Mac) - Steam - Digital Key
Windows
2d ago
DRM:
Steam
Driffle
A$10.83 A$10.18
-6%
-6% with XDDEALS6copy
-6% with XDDEALS6copy
Instant Gaming
The Posthumous Investigation
Windows
1d ago
DRM:
Steam
Instant Gaming
A$32.60 A$20.68
-36%

About The Posthumous Investigation

The Posthumous Investigation - about the game

The Posthumous Investigation is an indie narrative adventure game that blends simulation and point-and-click elements into a time-loop murder mystery. Set in a hand-drawn version of 1937 Rio de Janeiro, players take on the role of a detective tasked with solving the death of Brás Cubas, who has hired them from beyond the grave. The experience centers on observation, deduction, and repeated attempts within a single day, all while navigating the routines of fourteen distinct characters.

Gameplay

Core gameplay revolves around mastering a persistent time loop. Each cycle lasts one day, during which the player tracks the movements and interactions of fourteen unique suspects. Schedules can be learned through direct observation, and contradictions in statements or actions become key to progress. Knowledge carries over between resets, allowing incremental advantages against the killer.

The Thinking Board serves as the central tool for organization. Players link pieces of evidence, map out timelines, and test accusations without any tutorial guidance. Success depends entirely on logical connections rather than external hints. Manipulation of daily routines adds another layer, as altering one character's path can reveal new information or block others in subsequent loops.

Exploration occurs through a stylized, hand-drawn environment that captures the atmosphere of the period. Dialogue and events unfold in a satirical tone drawn from literary influences, encouraging careful listening and note-taking across multiple runs.

Game Modes

The game operates as a single-player investigative experience built around the time-loop structure. There are no separate competitive or cooperative modes. Instead, the core loop itself provides the replay structure, with each attempt focused on gathering more details and refining accusations.

Progression remains consistent across playthroughs, though outcomes vary based on the evidence assembled and the final accusation chosen. The absence of branching paths outside the loop keeps the focus on deduction rather than multiple storylines.

Setting and Atmosphere

The world draws from a dark, witty adaptation of classic Brazilian literature, presenting 1937 Rio de Janeiro as a living backdrop filled with sarcasm and social commentary. Hand-drawn visuals emphasize style and mood over realism, while character animations convey personality through subtle movements and expressions.

Atmosphere builds through repeated exposure to the same locations and conversations, revealing layers only after several cycles. Themes of death, illness, and flawed treatments appear in dialogue without graphic depictions, maintaining a mature but non-explicit tone suitable for players interested in narrative depth.

Is It Worth Playing?

Players who enjoy deduction-heavy adventures and time-loop mechanics will find a focused experience here. The game rewards patience and logical thinking, with a structure that eliminates hand-holding in favor of self-directed investigation. Sessions typically run between ten and twelve hours for a complete playthrough, though additional loops extend engagement for those seeking full clarity.

Reception has been strong among those who appreciate its literary roots and mechanical consistency. Steam users rate it very positively overall, with approval exceeding ninety percent from hundreds of reviews. The title suits fans of narrative mysteries who prefer pure logic over action or resource management.

Its recent release means ongoing visibility in the indie scene, and the single-player format ensures a complete story without external dependencies. Those drawn to atmospheric settings and character-driven puzzles will likely appreciate the deliberate pace and open-ended conclusions.

Interface:
EnglishJapanesePortuguese - BrazilRussianSimplified ChineseTraditional Chinese
Subtitles:
EnglishJapanesePortuguese - BrazilRussianSimplified ChineseTraditional Chinese

Age rating

Unavailable
Metacritic:
77 8.1

Minimum:

  • OS: Windows 10
  • Processor: Multi-core 1.8GHz or faster
  • Memory: 4 GB RAM
  • Graphics: NVIDIA GeForce GTX 760 or equivalent
  • Storage: 3 GB available space

Recommended:

  • OS: Windows 10
  • Processor: Multi-core 2.5GHz or faster
  • Memory: 8 GB RAM
  • Graphics: NVIDIA GeForce GTX 1050 or equivalent
  • Storage: 3 GB available space

Minimum:

  • OS: macOS High Sierra
  • Processor: Apple M1 ou Intel Core i3 1.8 GHz
  • Memory: 4 GB RAM
  • Graphics: NVIDIA GeForce GTX 760 or equivalent
  • Storage: 3 GB available space

Recommended:

  • OS: macOS 13 Ventura
  • Processor: Apple M1 ou Intel Core i5 2.5 GHz
  • Memory: 8 GB RAM
  • Graphics: NVIDIA GeForce GTX 1050 or equivalent
  • Storage: 3 GB available space
Historical low
Price history from official stores
A$20.57
Green Man Gaming
1 weeks ago
Price history from keyshops
A$7.42
Yuplay
3 months ago

FAQ

8 questions

Before you start looking for a cheap The Posthumous Investigation PC key, check the essentials. Developed by Mother Gaia Studio. Published by Nuuvem Inc. PC released date: 31 Mar 2026. Genres: Indie, Casual, Simulation, Adventure. Categories: Family Sharing, Single-player, Steam Achievements, Full controller support, Steam Cloud.

Q

Where to buy a cheap The Posthumous Investigation Steam key or CD key?

Using our price comparison and verified discount codes, you can buy a The Posthumous Investigation key for as low as A$8.24. This deal is available at Yuplay and is among the cheapest offers on the market. All keys listed on XD.deals are delivered digitally and eligible for instant download after payment. Prices already include processing fees and applied promo codes, so you always see the lowest The Posthumous Investigation price on PC. Check the The Posthumous Investigation price history to buy at the best moment.

As of our last update (we refresh Steam pricing multiple times a day), the The Posthumous Investigation Steam price is A$29.50. You can save an extra ~6% by paying with a discounted Steam gift card.

Our price tracker covers both official retailers and key marketplaces, so you can find The Posthumous Investigation on sale even outside seasonal promotions. We currently detect 10 active offers from official stores and keyshops. Check the table above, compare against the historical low, and set an alert so you never miss the next price drop.

Based on our data, The Posthumous Investigation is not currently available on GeForce NOW. You will need to run it locally on your PC. Browse games available on GeForce NOW.

Yes. The Posthumous Investigation has an official page on the Steam Store. You can also buy a The Posthumous Investigation Steam key from third-party sellers. Our price comparison currently includes 10 offers with Steam DRM. Pick one to ensure your The Posthumous Investigation download happens on Valve's platform.

Not at this time. Valve marks The Posthumous Investigation as Unsupported on Steam Deck. Keep an eye on XD.deals - we track Proton updates and community fixes. Browse games that are Steam Deck Verified or Steam Deck Playable.

The Posthumous Investigation does not appear to be available on PC Game Pass, EA Play, Ubisoft+ or any other PC subscription service at this time. Your only option is purchasing the game - use XD.deals to find the best price.

No - XD.deals is not a store. We are a price-comparison service that tracks the best The Posthumous Investigation deals across official stores and verified keyshops. Click "Go to Store" next to any offer and you will be redirected to the retailer's website to complete your purchase.

Best prices for The Posthumous Investigation

1 Yuplay Yuplay Keyshop
-71% A$8.24
2 G2Play G2Play Keyshop
-68% A$9.89
3 Kinguin Kinguin Keyshop
-68% A$9.89
4 Driffle Driffle Keyshop
-6% A$10.18
-30% A$20.57

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