While Sleeping

First-person horror about surviving ghosts while trapped in sleep paralysis

Sangwoon Jin · Published by FLUXJIN · Released Dec 12, 2024

Reviews: Very Positive; 81% of 93
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 28, 2026
Steam Deck: Untested
Last update on Steam: 11 months ago; Nov 5, 2025
Minimum PC: GTX 900; 16 GB RAM · 2 GB disk; Full requirements

What is While Sleeping?

While trying to sleep before work, you become trapped in sleep paralysis in this first-person horror game. You can only look around and open or close your eyes, responding differently to each ghost to survive until daybreak.

For you if...

+you enjoy psychological horror built around helplessness

Not for you if...

−you want cooperative horror to play with friends

What players say

81% of 93 reviews are positive

Players praise the jump scares. Complaints focus on basic gameplay and the short runtime, with some players also reporting deaths despite following the encounter instructions.

Screenshots and trailer

While Sleeping system requirements

Minimum: GTX 900, 16 GB RAM, 2 GB of disk space.

As published by the developer.

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Minimum

OS: Windows 10 (64-bit)
Processor: Intel Core i3 or AMD Ryzen 3
Graphics: NVIDIA GTX 900 Series or AMD RX 200 Series
Memory: 16 GB RAM
Storage: 2 GB available space
DirectX: Version 11

Does While Sleeping have co-op or multiplayer?

No: single-player only, no multiplayer modes declared.

Single-player

Does While Sleeping run on Steam Deck?

Untested Not yet tested by Valve on Steam Deck.

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows
Steam features: Cloud saves, Family Sharing
Languages: Full audio: English, Korean. Text only: French, German, Russian, Japanese, Simplified Chinese, Turkish.

Does While Sleeping use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 27, 2026. How to filter AI games on Steam