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Half-Rats: Parasomnia

Game overview

Half-Rats: Parasomnia

A single-player total-conversion Horror modification for Half-Life 1, set in the late 1800's.

Free to Play Action Adventure Gore Violent
Last tracked players
0
All-time peak
2
24-hour change
Unavailable
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".

Player activity

Concurrent players over the last 48 hours.

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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
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.

Sources fresh
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)
LanguageInterfaceFull audioSubtitles
EnglishYesYesYes
Steam store page fresh · checked 2026-10-15 PCGamingWiki technical notes External link only; SteamIQHQ does not ingest PCGamingWiki content.
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Genre Benchmarks

Player Count Top 25%

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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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