Sickness

Sickness

Zetsubou · January 20, 2016 · Visual Novel, Indie, Violent, Simulation, Action

Buy Sickness from Eneba at $1.78 — the cheapest of 4 stores we compare.

PC
Very Positive90% · 145
Best price 56 Good deal
$1.78-75%
lowest tracked $1.42
Eneba Buy at Eneba

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Where to buy Sickness — official stores

Steam
Steam
Standard Edition · Steam
-75%
$2.49
$9.99
Buy

Cheapest Sickness keys — keyshops

Keyshops are third-party marketplaces — keys are resold and can be region-locked or a different edition. Check the listing's region & edition before buying.

Eneba
Standard Edition · Steam
$1.78
Buy
Driffle INC
Standard Edition · Steam
$3.08
Buy
Gameseal
Standard Edition · Steam
$3.96
Buy

Some store links are affiliate links — playze may earn a commission at no extra cost to you. It never changes the price you pay, and the cheapest confirmed price is always shown in the Best price box above.

Sickness price by region

Sickness costs £1.09 in the United Kingdom, €1.24 in Europe (EUR), $1.78 in the United States, $1.78 in Georgia (USD), CA$2.74 in Canada, NZ$2.99 in New Zealand, A$3.62 in Australia, R$4.99 in Brazil and zł6.86 in Poland right now.

Cheapest Sickness offer in each region, in local currency
RegionBest priceOfficial storeKey shopStores
United Kingdom £1.09 −75% £1.74 £1.09 3
Europe (EUR) €1.24 −75% €2.49 €1.24 5
United Statesyour region $1.78 −75% $2.49 $1.78 4
Georgia (USD) $1.78 −75% $6.99 $1.78 4
Canada CA$2.74 −75% CA$2.74 — 1
New Zealand NZ$2.99 −75% NZ$2.99 — 1
Australia A$3.62 −75% A$3.62 — 1
Brazil R$4.99 −75% R$4.99 R$13.99 2
Poland zł6.86 −75% zł8.99 zł6.86 3

Each row is a real price from that region's own stores, not a currency conversion, so the figures are not directly comparable. Switch regions in the header to shop the one you buy in.

Screenshots

About Sickness

Stats (September 25th 2017)
Word count: 216,000 words
Number of CGs: 85 (plus variations of several)
Number of sprites: 32 (mostly minor characters)
31 original music tracks, + 9 CCA-by tracks

Summary/Plot

Sickness is a Visual Novel following the life of Suoh, a high school student turned violent criminal.

Following the deaths of his parents, Suoh is left without a home or source of income. All he has is his twin sister, Sara, who he promises to provide for, even if doing so means throwing his life away.

Using the entirety of their savings, the two move to another city, wherein Suoh quickly finds work. Sara commutes to her old school, Suoh works long, physically-demanding hours, and the two survive off instant food, barely scraping by. It isn't a happy life, but they make it work.

Or at least they did, until a violent outburst set into motion a rapid descent.

Amid a physical altercation with his boss, Suoh blacks out, waking up to find a corpse laying at his feet. His knuckles bloody, his muscles aching, he realizes that he has just murdered his boss, the person responsible for his continued well-being. But rather than lament the loss of life, all Suoh can think of is how badly he needed the money, and what he'll do next to get it.

Drawn by the scent of blood, one of Suoh's coworkers, a young man with criminal connections, offers him a not so legal revenue stream, one encouraging violent behavior and rewarding the capable.

And from there, everything spirals out of control.

As it turns out, Suoh has a knack for crime, and the petty reservations he had about such acts don't last long. For the well-being of his sister, as well as his own self-interest, he becomes a killer for hire, taking out people anybody his new boss tells him to. He quickly adapts to life as a killer, adopting a double life his sister can never know about.

But his new life is not without trouble. Facing death on a weekly basis is only the beginning; between avoiding police detection, eyewitnesses, and even the malice of his fellow professional killers, Suoh's new life looks to be the death of him.

Will Suoh manage to survive long enough to keep his promise to his sister? Will he turn tail and escape from this life of crime, finding solace in the company of someone or something else? Or will he be hunted down and killed before he ever gets the chance?

Main Characters

Sara Tesla - Suoh's twin sister

Sara is a high school student who harbors complex feelings. To her brother, Sara is an angelic sister with a loving nature and endless affection; an image she cultivates and builds on daily. To everyone else, however, Sara is narcissistic and thoroughly two-faced.
Family aside, Sara doesn't care for other people in the slightest, and as a result of her desperately trying to hide this fact, her family mistakenly believe Sara to be bipolar.

Karasu - An up and coming crimelord

Karasu builds his wealth through a variety of "services", including, but not limited to, gambling, corporate espionage, and organ trafficking. Above all, however, Karasu is most famous for providing "waste disposal" for neighboring towns, whether they request his services or not.
His ultimate goal is to build an empire he can share with his beloved "children"; interesting individuals he has taken under his wing and granted a new lease on life.
Though many view him as a sadistic narcissist who will stop at nothing to obtain what he wants, Karasu is ultimately a simple businessman who displays affection only for a chosen few.

Sai - Karasu's right-hand man

Sai is Karasu's most trusted and capable employee, responsible for overseeing his most lucrative business ventures, despite always working in the shadows. He is also responsible for “breaking in” new recruits, and as such becomes Suoh's teacher.
Unrivaled in what he does, Sai is a ruthless killer who feels no remorse; those who get on his bad side seldom live long enough to realize it.
The only things more important to Sai than his work are his daughter's well-being and happiness.

Misa - Sai's daughter

Misa is a teenage girl who wishes for a normal life.
Being the daughter of a professional killer (and protective father), however, Misa has trained from a young age in order to protect herself from the dangers of the world, and in doing so inevitably became aware of her father's line of work.
As her father's work absorbed her life, Misa adapted her skillset to match those of a killer, using her youth and small figure to become the youngest and most discreet killer among her peers.
Outside of work, Misa is still just a young girl. She's very friendly, once she warms up to someone, and is protective of those close to her.

Sickness — game info

Platforms
Windows, macOS, Linux / SteamOS
Steam Deck
Verified
Player modes
Single-player
Controller
Full controller support
PC Game Pass
Not included

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Recommended Mar 29, 2026
When life spirals out of control and a disturbing sickness infests the mind, clinging to the last remnants of normalcy becomes the only escape left. But one day, that resolve will falter. There will come a moment when the spiral runs so deep that escape is no longer possible. In fact, maybe there was never any escape to begin with. Enjoy the sickness. It bears fruit.
5 found this helpful
Recommended Jul 7, 2026
[i]Sickness[/i] is a unique visual novel that certainly is not for everyone. Released in 2016 and received its final story update in 2017. [b][u]Story:[/u][/b] [Prologue and 16 chapters in total.] (Backstory)[spoiler]Suoh and Sara were school students. The Tesla twins were very close, always together, sharing everything with each other. Sara is indeed a brocon. Students spread rumours about her, claiming that she was two-faced, narcissistic, and codependent, but she wasn’t. She just monopolised her brother to avoid losing him and hated (even attacked) any girls who tried to get close to him. Suoh also hadn't any problem being close to her sister. Their parents thought she was bipolar and tried to create distance between her and Suoh. Cecilia was the only one whom Sara let talk with Suoh. She (C) was a new student and started liking Suoh because he saved her from the prostitute business. She heard those rumours, started overthinking, and delved into that matter. Sara then started to dislike her. Even one day, she (C) called Sara into a separate classroom and told her not to be so attached to Suoh. Sara got mad and started quarrelling. Suoh also came at the perfect time in search o…
2 found this helpful
Recommended Oct 7, 2026
Sickness is a dark psychological visual novel that explores desperation, violence, emotional instability, and the gradual destruction of personal morality. Developed by Zetsubou and published by Unwonted Studios and Zetsubou, the game offers an unsettling narrative that challenges conventional expectations of character-driven storytelling. Instead of presenting a heroic adventure, it follows a troubled individual whose increasingly questionable decisions expose the disturbing consequences of survival instincts and moral compromise. Its mature themes, complicated relationships, and oppressive atmosphere make it particularly appealing to readers who appreciate psychological thrillers and unconventional crime dramas. The story follows Suoh Tesla, a young man whose life deteriorates after losing his parents and developing a mysterious condition that influences his behavior. Struggling financially while attempting to support his twin sister, Sara, Suoh becomes involved in criminal activities that gradually transform his personality and worldview. His descent into violence forms the foundation of the narrative, presenting situations where desperation and personal responsibility become i…
1 found this helpful
Recommended Jul 26, 2025
There was a moment at the beginning when I thought the game's overall message would be "murder is le bad," but the story developed in ways that kept me interested in how things would resolve. Definitely worth your time.
1 found this helpful
Recommended Aug 23, 2026
Fever burns the mind shadows creep through broken walls silence, then the dark
Recommended Jan 8, 2026
Очень достойная новелла. За персонажами интересно наблюдать, рисовка, особенно в кат-сценах, приятная, сюжет занимательный. Отдельно отмечу, что в новелле аж 4 рута, не ожидал такого от хоррор-новеллы. Количество и качество контента абсолютно стоит потраченных денег.

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