Sickness is a Action, Adventure, Simulation game from Zetsubou with a 91% positive Steam review signal. Indie Lantern indexes it for players browsing by single-player.

Game snapshot
- Developer
- Zetsubou
- Release year
- 2016
- Playtime
- Varies by player
- Price
- $9.99
- Review signal
- 91% positive
Screenshots






System requirements
PC
- Minimum
- OS *: Windows XP
Processor: 1Ghz
Memory: 1 GB RAM
Graphics: DirectX or OpenGL compatible card (capable of 1080p output)
Storage: 2 GB available space - Recommended
- OS *: Windows 7
Processor: 1.5Ghz dual core
Memory: 2 GB RAM
Graphics: DirectX or OpenGL compatible card (capable of 1080p output)
Storage: 5 GB available space
macOS
- Minimum
- OS: Mac OS 10.4
Processor: 1 Gz
Memory: 1 GB RAM
Graphics: OpenGL compatible card (capable of 1080p output)
Storage: 2 GB available space - Recommended
- OS: Mac OS 10.6+
Processor: 1.5Ghz dual core
Memory: 2 GB RAM
Graphics: OpenGL compatible card (capable of 1080p output)
Storage: 5 GB available space
Linux
- Minimum
- OS: Ubuntu 12.04
Processor: 1 Gz
Memory: 1 GB RAM
Graphics: OpenGL compatible card (capable of 1080p output)
Storage: 2 GB available space - Recommended
- OS: Ubuntu 14.04+
Processor: 1.5Ghz dual core
Memory: 2 GB RAM
Graphics: OpenGL compatible card (capable of 1080p output)
Storage: 5 GB available space
From Steam reviews
Review notes
Sickness is worth a closer look if you want strong atmosphere, emotional story, psychological themes, and exploration.
Best for players who want strong atmosphere, emotional story, psychological themes, and exploration.
strong-atmosphere
ToneThe mood, place, and presentation carry a lot of the experience.
emotional-story
ToneThe story is framed as affecting rather than just plot-heavy.
psychological-themes
SettingPsychology, perception, or mental strain is an important theme without implying horror.
psychological-horror
SettingThe fear comes through pressure, perception, or psychological unease.
exploration
Play styleThe draw is moving through spaces, discovering details, and learning the world.
deckbuilding
Play styleCard choices, deck shape, and synergies matter.
chaotic-fun
ToneThe appeal is messy, funny, and unpredictable rather than polished calm.
Steam review snapshots
Midst all the chaos, [b]Suoh has two shining beacons of hope[/b], his twin sister Sara and a girl he meets in his…Sickness is a visual novel developed by Zetsubou and published by Unwonted Studios it has a overall dark theme and atmosphere surrounding…I could attribute it to his loss of sanity, but as far as I know, its completely unavoidable.Judging by the title I thought I'd experience something scary, gory, truly sickening and thus highly emotional but frankly speaking my expectations…Why it fits
Check it if you want action, adventure filtered by single-player.
Who might skip it
Research further on Steam if you need verified accessibility details, exact playtime, or current system requirements.