Underplayed Gems

Sector 404 (2025)

Sector 404 cover
Developer
Empty Studio
Platforms
Windows
Genres
Adventure, Indie, Simulation
Rating
3.6 of 5, 66 player ratings
Typical playtime
about 1.3 hours
Where to get it
Steam

How it feels

A slow, oppressive climb through an endlessly shifting building, where each step feels watched and wrong.

darkatmospherictenseslowunsettlinglinearominoussurreal

What players say

Players say it is a tense anomaly-hunting game set in a decaying Soviet apartment block, where you loop through floors spotting scary differences. Many note the anomalies range from obvious to nearly invisible, making progress frustrating without guides. Reviews split on fun: some find it genuinely terrifying, others call it boring spot-the-difference.

Screenshots

Sector 404 screenshot 1Sector 404 screenshot 2Sector 404 screenshot 3Sector 404 screenshot 4Sector 404 screenshot 5Sector 404 screenshot 6

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