Compare Sickness prices across trusted key stores and find the best deal. Developed by Zetsubou. Published by Unwonted Studios. Released on 1/20/2016. Available on PC, Mac, Linux. Genres: Action, Adventure, Indie, Simulation.

Dark VN that hands you an amoral protagonist and a crime syndicate, then fails to cash in on its own best idea. Worth it for genre fans who can live with a third-act that loses the thread.

I track branching structures in visual novels the same way I track tech trees in 4X games, so when a VN promises a protagonist whose central psychological hook is called the 'Sickness' and then consistently sidelines that mechanic, I notice. That is the core tension with Sickness by Zetsubou: the setup is genuinely compelling, and the follow-through is frustratingly uneven. The structure is a choice-driven visual novel with multiple routes and endings. Suoh Tesla, freshly orphaned and responsible for his twin sister Sara, murders his employer during a blackout and gets drafted into working for a mob boss named Karasu, graduating from debt collector to assassin as the story progresses. The branching lets you decide how Suoh spends downtime and how he approaches individual hits, and those choices filter you toward different female leads and route-specific outcomes. The word count sits at roughly 216,000 words across those paths, which is a respectable commitment for an indie VN at this price tier. There are 85 CG illustrations and 31 original music tracks backing the whole thing, and the overall audio-visual presentation is competent enough to stay out of its own way. Where the game earns its 90% positive Steam rating is in pacing and atmosphere during the first half. The setup is punchy, the crime-city backdrop has genuine grime to it, and Suoh as an amoral lead is a rarer choice than the genre usually offers. Fans who found conventional slice-of-life VNs too clean will find the early chapters satisfying. The problem is that the Sickness itself, an intrusive psychological voice that was clearly intended to escalate as Suoh sinks deeper into crime, never gets the dramatic payoff it deserves. It surfaces as background text and occasional nausea, then the story quietly moves on without resolving or even naming its cause. Critics and community reviewers alike flagged this gap, and they are right to. When your title is a mechanic, you cannot let that mechanic become decoration. The art is a patchwork production, drawing from multiple sprite and background artists whose styles do not always harmonize. Sprites are expressive but plainly styled; backgrounds do the job without reinforcing the grimy urban atmosphere the writing describes. It is a production reality common in small indie VNs, not a dealbreaker, but worth knowing going in. There are scattered typos, and pacing in the latter routes can drag as the story leans on Karasu praising Suoh's adaptability a few times too many, which has the unintended effect of deflating tension. From a decision-depth standpoint, this is not a VN where choices carry the weight of a Fate/Stay Night or even a Muv-Luv. The branches are meaningful enough to justify a second run, but you will not be mapping a decision tree on paper. Newcomers to the genre will find the structure approachable, and the dark subject matter, covering violence, crime economics, and moral deterioration without flinching, gives it a distinct identity among anime-styled VNs. Just go in knowing the back half underdelivers on what the front half promises. Diego, Scout Team

Sickness

Sickness

Jan 20, 2016ZetsubouUnwonted Studios
GamerScout Says

Dark VN that hands you an amoral protagonist and a crime syndicate, then fails to cash in on its own best idea. Worth it for genre fans who can live with a third-act that loses the thread.

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Best Price Available
€1.24
at Kinguin
Lowest tracked: €1.24
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GamerScout Verdict

Best for dark VN fans who want a crime-fiction angle on anime-style storytelling and can forgive a third act that abandons its headline mechanic.

Compare Prices(6 stores)

KinguinBest price
StandardGlobalSteam KeyKey
€1.24
Priced in EUR by the store
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StandardGlobalSteam KeyKey
€1.45
Priced in EUR by the store
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StandardEurope (EU)Steam KeyKey
€1.59
Priced in EUR by the store
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StandardGlobalSteam KeyKey
€1.59-84%
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StandardGlobalSteam KeyKey
€2.10-19%
Priced in EUR by the store
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StandardEurope (EU)Steam KeyKey
€9.99
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StandardEurope (EU)Steam KeyKey
€71.13
Priced in EUR by the store
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Price History

Lowest tracked
€1.247 Sept 2026
Current best
€1.24
Lowest since we started tracking
Keyshops
€1.21€1.30€1.40€1.499 Jun2 Jul24 Jul16 Aug7 Sept
9 Jun — 7 Sept
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Screenshots & Media

About Sickness

I track branching structures in visual novels the same way I track tech trees in 4X games, so when a VN promises a protagonist whose central psychological hook is called the 'Sickness' and then consistently sidelines that mechanic, I notice. That is the core tension with Sickness by Zetsubou: the setup is genuinely compelling, and the follow-through is frustratingly uneven. The structure is a choice-driven visual novel with multiple routes and endings. Suoh Tesla, freshly orphaned and responsible for his twin sister Sara, murders his employer during a blackout and gets drafted into working for a mob boss named Karasu, graduating from debt collector to assassin as the story progresses. The branching lets you decide how Suoh spends downtime and how he approaches individual hits, and those choices filter you toward different female leads and route-specific outcomes. The word count sits at roughly 216,000 words across those paths, which is a respectable commitment for an indie VN at this price tier. There are 85 CG illustrations and 31 original music tracks backing the whole thing, and the overall audio-visual presentation is competent enough to stay out of its own way. Where the game earns its 90% positive Steam rating is in pacing and atmosphere during the first half. The setup is punchy, the crime-city backdrop has genuine grime to it, and Suoh as an amoral lead is a rarer choice than the genre usually offers. Fans who found conventional slice-of-life VNs too clean will find the early chapters satisfying. The problem is that the Sickness itself, an intrusive psychological voice that was clearly intended to escalate as Suoh sinks deeper into crime, never gets the dramatic payoff it deserves. It surfaces as background text and occasional nausea, then the story quietly moves on without resolving or even naming its cause. Critics and community reviewers alike flagged this gap, and they are right to. When your title is a mechanic, you cannot let that mechanic become decoration. The art is a patchwork production, drawing from multiple sprite and background artists whose styles do not always harmonize. Sprites are expressive but plainly styled; backgrounds do the job without reinforcing the grimy urban atmosphere the writing describes. It is a production reality common in small indie VNs, not a dealbreaker, but worth knowing going in. There are scattered typos, and pacing in the latter routes can drag as the story leans on Karasu praising Suoh's adaptability a few times too many, which has the unintended effect of deflating tension. From a decision-depth standpoint, this is not a VN where choices carry the weight of a Fate/Stay Night or even a Muv-Luv. The branches are meaningful enough to justify a second run, but you will not be mapping a decision tree on paper. Newcomers to the genre will find the structure approachable, and the dark subject matter, covering violence, crime economics, and moral deterioration without flinching, gives it a distinct identity among anime-styled VNs. Just go in knowing the back half underdelivers on what the front half promises.

Diego
Diego · Scout Team

Strategy & simulation

Tags

singleplayerachievementscontroller-supporttrading-cardscloud-savestier:sub-5Crime NoirMultiple RoutesDark ProtagonistChoice-DrivenPsychological ThemesMature ContentBranching EndingsKinetic Pacing

System Requirements

Minimum

OS
Windows XP
Memory
1 GB RAM
Storage
2 GB available space
Graphics
DirectX or OpenGL compatible card (capable of 1080p output)
Processor
1Ghz

Recommended

OS
Windows 7
Memory
2 GB RAM
Storage
5 GB available space
Graphics
DirectX or OpenGL compatible card (capable of 1080p output)
Processor
1.5Ghz dual core

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Game Info

Developer
Zetsubou
Publisher
Unwonted Studios
Release Date
Jan 20, 2016

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Frequently asked questions about Sickness

How much does Sickness cost?

As of 7 September 2026, the cheapest in-stock offer for Sickness is €1.24 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 Sickness cheapest?

The lowest in-stock price we track for Sickness is €1.24 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 Sickness available on?

Sickness is available on PC, Mac, Linux.

When was Sickness released?

Sickness was released on 20 January 2016.

Who developed Sickness?

Sickness was developed by Zetsubou and published by Unwonted Studios.