Underplayed Gems

Sleeper S9 (2025)

Sleeper S9 cover
Developer
Nimmen Studios
Platforms
Windows
Genres
Adventure, Casual, Indie, Simulation
Rating
4.2 of 5, 13 player ratings
Typical playtime
about 31 minutes
Where to get it
Steam

How it feels

A tense, slow-burn puzzle exploration where you navigate a cursed train's warping reality, never sure what's safe.

atmospherictensecreepypuzzlingexplorationslow-pacedunsettling

What players say

Players praise the atmospheric horror and detailed Indian train setting, though some find the anomaly-spotting gets tough later. One reviewer calls the graphics poor, and another claims positive reviews are fake.

Screenshots

Sleeper S9 screenshot 1Sleeper S9 screenshot 2Sleeper S9 screenshot 3Sleeper S9 screenshot 4Sleeper S9 screenshot 5Sleeper S9 screenshot 6

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