Sector 404

First-person horror about spotting anomalies in a looping apartment block

Empty Studio · Released Jul 13, 2025

Reviews: Mostly Positive; 76% of 66
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 28, 2026
Steam Deck: Untested
Last update on Steam: 1 year ago; Oct 23, 2025
Minimum PC: GeForce GTX 1060; 8 GB RAM · 10 GB disk; Full requirements

What is Sector 404?

This first-person psychological horror walking simulator follows a man trying to reach his apartment late at night. You choose a route of 10, 15, or 20 floors, watching and listening for anomalies and scanning electronics with a detector. Missing an anomaly sends you back to the start.

For you if...

+you enjoy slow exploration that demands close attention
+you like learning your surroundings through repeated attempts

Not for you if...

−you prefer forgiving progress without repeated resets
−you avoid jump scares and supernatural horror

What players say

76% of 66 reviews are positive

Players praise the eerie atmosphere and the variety of anomalies and apparitions. Some find the subtler anomalies too difficult to spot.

Screenshots and trailer

Sector 404 system requirements

Minimum: GeForce GTX 1060, 8 GB RAM, 10 GB of disk space.

As published by the developer.

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Minimum

OS: Windows 10
Processor: Intel(R) Core(TM) i5-4590 3.3GHz
Graphics: NVIDIA GeForce GTX 1060
Memory: 8 GB RAM
Storage: 10 GB available space

Does Sector 404 have co-op or multiplayer?

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

Single-player

Does Sector 404 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
Achievements: 5
Steam features: Family Sharing
Languages: Text only: English, German, Spanish - Spain, Indonesian, Japanese, Korean, Romanian, Russian, Simplified Chinese, Thai, Turkish.

Does Sector 404 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 28, 2026. How to filter AI games on Steam