Half-Rats: Parasomnia
A single-player total-conversion Horror modification for Half-Life 1, set in the late 1800's.
| Type | Mod |
| Release Date | 10/31/2017 |
| Developer | Heath Games |
| Publisher | Heath Games |
| Last Updated | 3/22/2025 |
| Steam App Id | 638360 |
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About Half-Rats: Parasomnia
Half-Rats: Parasomnia is an Action, Adventure, and Free to Play Mod developed by Heath Games. On 10/31/2017, it was released on the Steam Store by Heath Games. Half-Rats: Parasomnia can be played and ran on both Windows and Linux systems. At the moment, there is no confirmed information regarding Steam Deck support for this mod app.
According to Steam’s category system, Half-Rats: Parasomnia supports the following features:
- Steam Cloud
- Single-player
- Captions available
Media & Sceenshots
Explore the featured video and screenshots from Half-Rats: Parasomnia featured in the Steam Store.
DLC & Related Apps
Half-Rats: Parasomnia is referenced by 1 other related app in the Steam Store.
| Image | Name | Type | Release Date | Actions |
|---|---|---|---|---|
 | Half-Rats: Parasomnia - OST | DLC | 11/8/2017 | Steam Charts |