Game overview
Half-Rats: Parasomnia
A single-player total-conversion Horror modification for Half-Life 1, set in the late 1800's.
- Last tracked players
- 0
- All-time peak
- 2
- 24-hour change
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- Steam reviews
- 80.9% positive 47 reviews · via SteamSpy
Delayed observation · last tracked . Values marked unavailable are not estimated.
About this game Read the full description
This mod will feature UN-skippable monologue and dialogue. You have been warned!
July, 1883. Half-Rats is, as he usually seems to be; down on his luck and fretting for the future. One fateful night, he carelessly decides to drown his sorrows with strong libations - and he runs up a tab at a pub he knows he can't pay...Remarkably; Instead of a reproachful speech and coarse removal, he is instead told a tale he can hardly believe. A tale involving great riches, but even greater peril. If he was not so desperate, he wouldn't conceive of embarking on what could be a wild goose chase to locate a forgotten and virtually unknown town. Half-Rats' doubts were abated somewhat when the publican shews his utmost sincerity - albeit in a strange and effusive manner - and draws him a rude map.
"Thank the lord, for he smote that place from the Earth in '81. We lived, but most met their destruction the night that liberating conflagration visited freedom upon us. We're the last of 'em...There was a vault in the bank, large sums of money would have been stole away there, safe. We vowed never to go back, to keep that place a dread secret until tonight."
The seemingly mythical town in question is referred to as "Eminence". With no other hope to speak of, and fearing that this may be treachery after all; Half-Rats is still compelled to begin this peregrination to his "El Dorado" with weapons at the ready. But he'll find much more than gold and banknotes before his journey is through. All is not what it seems, and he'll find a living, livid hell to contend with...And the close of a dilemma he'd all but forgotten.
Features:
- Brand new maps. Featuring several environments.
- Inventory items you can carry with you and use. Each with its own effects. you can carry up to 9 of each item on the planet.
- Lantern that requires oil to function.
- Monetary system. You can pick up cash and valuable objects in order to purchase items at stores.
- Brand-new enemies to contend with - Many with their own abilities and fighting styles.
- Mixed enemies that each utilize their abilities in a squad setting to take you down.
- 6 new period weapons.
- "Kicking" enemies and "Blocking" attacks during melee combat.
- "Half-Cat Cheroots" combat companion.
- Over 600 brand-new textures from scratch.
- New sounds!
- New soundtrack provided by "Ague".
July, 1883. Half-Rats is, as he usually seems to be; down on his luck and fretting for the future. One fateful night, he carelessly decides to drown his sorrows with strong libations - and he runs up a tab at a pub he knows he can't pay...Remarkably; Instead of a reproachful speech and coarse removal, he is instead told a tale he can hardly believe. A tale involving great riches, but even greater peril. If he was not so desperate, he wouldn't conceive of embarking on what could be a wild goose chase to locate a forgotten and virtually unknown town. Half-Rats' doubts were abated somewhat when the publican shews his utmost sincerity - albeit in a strange and effusive manner - and draws him a rude map.
"Thank the lord, for he smote that place from the Earth in '81. We lived, but most met their destruction the night that liberating conflagration visited freedom upon us. We're the last of 'em...There was a vault in the bank, large sums of money would have been stole away there, safe. We vowed never to go back, to keep that place a dread secret until tonight."
The seemingly mythical town in question is referred to as "Eminence". With no other hope to speak of, and fearing that this may be treachery after all; Half-Rats is still compelled to begin this peregrination to his "El Dorado" with weapons at the ready. But he'll find much more than gold and banknotes before his journey is through. All is not what it seems, and he'll find a living, livid hell to contend with...And the close of a dilemma he'd all but forgotten.
Features:
- Brand new maps. Featuring several environments.
- Inventory items you can carry with you and use. Each with its own effects. you can carry up to 9 of each item on the planet.
- Lantern that requires oil to function.
- Monetary system. You can pick up cash and valuable objects in order to purchase items at stores.
- Brand-new enemies to contend with - Many with their own abilities and fighting styles.
- Mixed enemies that each utilize their abilities in a squad setting to take you down.
- 6 new period weapons.
- "Kicking" enemies and "Blocking" attacks during melee combat.
- "Half-Cat Cheroots" combat companion.
- Over 600 brand-new textures from scratch.
- New sounds!
- New soundtrack provided by "Ague".
Media gallery 9 screenshots · 0 videos
Screenshots
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System requirements Windows · Linux
Windows
Minimum
Minimum:- OS *: Windows 7 Service Pack 1 or higher
- Processor: 2 GHz or better
- Memory: 2 GB RAM
- Graphics: 64 Mb of VRAM
- DirectX: Version 9.0c
- Storage: 500 MB available space
- Sound Card: DirectX 9.0c compatible
- Additional Notes: Requires ownership of Half-Life 1 on Steam
Recommended
Recommended:- OS *: Windows 7 Service Pack 1 or higher
- Processor: 2,5 GHz dual-core or better
- Memory: 4 GB RAM
- Graphics: 128 Mb of VRAM, compatible with OpenGL 1.2 or higher
- DirectX: Version 9.0c
- Storage: 500 MB available space
- Sound Card: DirectX 9.0c compatible
- Additional Notes: Requires ownership of Half-Life 1 on Steam
Linux
Minimum
Minimum:- OS: Ubuntu 22.04 The Jammy Jellyfish LTS
- Processor: 2 GHz or better
- Memory: 2 GB RAM
- Graphics: 64 Mb of VRAM, compatible with OpenGL 1.2 or higher
- Storage: 500 MB available space
- Sound Card: OpenAL compatible
- Additional Notes: Linux distribution, kernel and drivers up to date (for graphics card, non-free drivers might be necessary) and ownership of Half-Life 1 on Steam
Recommended
Recommended:- OS: Ubuntu 22.04 The Jammy Jellyfish LTS
- Processor: 2,5 GHz dual-core or better
- Memory: 4 GB RAM
- Graphics: 64 Mb of VRAM, compatible with OpenGL 2.1 or higher
- Storage: 500 MB available space
- Sound Card: OpenAL compatible
- Additional Notes: Linux distribution, kernel and drivers up to date (for graphics card, non-free drivers might be necessary) and ownership of Half-Life 1 on Steam
Game details Languages, features & support
- Publisher
- Heath Games
- Features
- Single-player, Captions available, Camera Comfort, Adjustable Difficulty, Playable without Timed Input, Save Anytime, Stereo Sound, Steam Cloud
- Languages
- English*
*languages with full audio support - Support
- Support site ↗
Compatibility & accessibility Steam Deck, controllers & access features
Can I Play This?
Steam declarations and Valve's Steam Deck compatibility result. Missing data is shown as unknown, never unsupported.
Native Steam builds
Windows: unknown
macOS: unknown
Linux: unknown
Steam Deck
unknown
Valve compatibility test
Input
Controller support: unknown
Developer-declared accessibility on Steam
Features not declared by the developer are not labeled unsupported.
camera comfort
stereo sound
playable without timed input
adjustable difficulty
save anytime
Structured language support (1)
| Language | Interface | Full audio | Subtitles |
|---|---|---|---|
| English | Yes | Yes | Yes |
Steam store page
fresh · checked 2026-10-15
PCGamingWiki technical notes
External link only; SteamIQHQ does not ingest PCGamingWiki content.
More analysis Activity patterns, updates & developer tools
Genre Benchmarks
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Developer Analytics
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Frequently Asked Questions
Is Half-Rats: Parasomnia free to play?
Yes, Half-Rats: Parasomnia is free to play on Steam.
What genre is Half-Rats: Parasomnia?
Half-Rats: Parasomnia is a Action, Adventure, Free To Play game.
Who developed Half-Rats: Parasomnia?
Half-Rats: Parasomnia was developed by Heath Games and published by Heath Games.
What platforms does Half-Rats: Parasomnia support?
Available on Steam for Windows, Linux.
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