Compare Who Must Die prices across trusted key stores and find the best deal. Developed by White Chamber. Published by Plug In Digital. Released on 11/13/2018. Available on PC. Genres: Adventure, Indie, Simulation.

A bleak medical puzzle where you run experiments on three patients to find the contaminated one. Short, dark, and morally uncomfortable by design.

Who Must Die drops you into a bare, clinical scenario: you are a replacement doctor in what appears to be a containment situation, and your job is to identify which of three patients carries contamination before time or circumstance forces your hand. The core loop is built around running experiments, interpreting results, and deciding how far you will push each subject to get the data you need. You can also delegate the more unpleasant tasks to the facility guard, which adds a thin layer of complicity to every decision. From a decision-depth standpoint, this is a very slim package. The mechanic set is narrow - a handful of tests, a small roster of characters, and branching outcomes that depend on how aggressively you pursue information. For players expecting a full simulation or a proper mystery with red herrings and deep lore, the experience will feel undercooked. The experiment system does not have the variable feedback loops that make a proper diagnosis sim satisfying, and the AI governing patient responses is rudimentary at best. Where the game earns some attention is in its moral framing. The premise forces you to treat human beings as data points, and the writing does not let you forget that. Whether the execution lands is another matter - with a 43 percent positive rating across a small review pool, the community is split, and the criticisms around short runtime and thin replayability are fair. There is no tutorial to speak of, which for a game this brief is survivable, but the lack of any onboarding means the systems are discovered by trial, error, and occasionally unintended outcomes. As a strategy-and-sim specialist I look for decision trees with real weight, and Who Must Die has the seed of that idea without the supporting structure. The identification mechanic has potential - working out contamination through process of elimination while managing guard intervention is genuinely tense for the first playthrough. But the session length is very short, and once you have seen the outcome space, replay incentive is close to zero unless you are chasing alternate endings deliberately. This is a niche curiosity for players who want a morally loaded micro-experiment rather than a full game. Approach it as interactive fiction with a faint sim skin rather than a proper simulation, and adjust expectations accordingly. Diego, Scout Team

Who Must Die

Who Must Die

Nov 13, 2018White ChamberPlug In Digital
GamerScout Says

A bleak medical puzzle where you run experiments on three patients to find the contaminated one. Short, dark, and morally uncomfortable by design.

PC
Best Price Available
€0.63
at Kinguin
Lowest tracked: €0.39
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GamerScout Verdict

A dark micro-experiment with an interesting premise that runs out of mechanical depth well before it runs out of moral questions.

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KinguinBest price
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€0.63
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StandardGlobalSteam KeyKey
€0.63-91%
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StandardGlobalSteam KeyKey
€0.73-90%
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€0.92-87%
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StandardEurope (EU)Steam KeyKey
€1.04-85%
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StandardEurope (EU)Steam KeyKey
€2.35
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StandardGlobalSteam KeyKey
€6.99
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Price History

Lowest tracked
€0.3917 Aug 2026
Current best
€0.63
Keyshops
€0.36€0.46€0.56€0.665 Jun29 Jun22 Jul15 Aug7 Sept
5 Jun — 7 Sept
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Screenshots & Media

About Who Must Die

Who Must Die drops you into a bare, clinical scenario: you are a replacement doctor in what appears to be a containment situation, and your job is to identify which of three patients carries contamination before time or circumstance forces your hand. The core loop is built around running experiments, interpreting results, and deciding how far you will push each subject to get the data you need. You can also delegate the more unpleasant tasks to the facility guard, which adds a thin layer of complicity to every decision. From a decision-depth standpoint, this is a very slim package. The mechanic set is narrow - a handful of tests, a small roster of characters, and branching outcomes that depend on how aggressively you pursue information. For players expecting a full simulation or a proper mystery with red herrings and deep lore, the experience will feel undercooked. The experiment system does not have the variable feedback loops that make a proper diagnosis sim satisfying, and the AI governing patient responses is rudimentary at best. Where the game earns some attention is in its moral framing. The premise forces you to treat human beings as data points, and the writing does not let you forget that. Whether the execution lands is another matter - with a 43 percent positive rating across a small review pool, the community is split, and the criticisms around short runtime and thin replayability are fair. There is no tutorial to speak of, which for a game this brief is survivable, but the lack of any onboarding means the systems are discovered by trial, error, and occasionally unintended outcomes. As a strategy-and-sim specialist I look for decision trees with real weight, and Who Must Die has the seed of that idea without the supporting structure. The identification mechanic has potential - working out contamination through process of elimination while managing guard intervention is genuinely tense for the first playthrough. But the session length is very short, and once you have seen the outcome space, replay incentive is close to zero unless you are chasing alternate endings deliberately. This is a niche curiosity for players who want a morally loaded micro-experiment rather than a full game. Approach it as interactive fiction with a faint sim skin rather than a proper simulation, and adjust expectations accordingly.

Diego
Diego · Scout Team

Strategy & simulation

Tags

steamMoral ChoicesShort PlaythroughMysteryDark ThemesDiagnosis PuzzleSingle SessionExperimental Narrative

System Requirements

Minimum

Processor
Core I5 6600k
Memory
2 GB RAM
Graphics
GTX 760
DirectX
Version 10
Storage
1 GB available space

Recommended

OS
Windows 10
Processor
Core I7 7700k
Memory
4 MB RAM
Graphics
GTX 780
DirectX
Version 10
Storage
1 GB available space

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Reviews & Ratings

Steam
43%(37)

Game Info

Developer
White Chamber
Publisher
Plug In Digital
Release Date
Nov 13, 2018

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Frequently asked questions about Who Must Die

How much does Who Must Die cost?

As of 7 September 2026, the cheapest in-stock offer for Who Must Die is €0.63 at Kinguin, out of 7 live offers we track across verified key stores. Prices change daily — the table on this page is refreshed continuously.

Where can I buy Who Must Die cheapest?

The lowest in-stock price we track for Who Must Die is €0.63 at Kinguin (7 September 2026). We compare 7 live offers from verified key stores — the full table with every store and its trust score is on this page.

What platforms is Who Must Die available on?

Who Must Die is available on PC.

When was Who Must Die released?

Who Must Die was released on 13 November 2018.

Who developed Who Must Die?

Who Must Die was developed by White Chamber and published by Plug In Digital.