Games like The Machinist
Games like The Machinist include No, I'm not a Human, Phasmophobia, The Test, The Test: Hypothesis Rising, and Poppy Playtime. We matched them by the tags players give The Machinist on Steam (Psychological Horror, Horror, Management, Thriller, and Trains): closest matches first, and among equally close ones the better-known games.

No, I'm not a Human
Shared: Psychological Horror · Horror · Choices Matter

Phasmophobia
Shared: Horror · Psychological Horror · Investigation

The Test
Shared: Psychological Horror · Multiple Endings · Horror

The Test: Hypothesis Rising
Shared: Horror · Psychological Horror · Choices Matter

Poppy Playtime
Shared: Horror · Psychological Horror · Mystery

The Test: Final Revelation
Shared: Horror · Psychological Horror · Choices Matter

Firework
Shared: Horror · Psychological Horror · Mystery

Demonologist
Shared: Horror · Psychological Horror · Investigation

Mouthwashing
Shared: Psychological Horror · Horror · Thriller

The Casting of Frank Stone™
Shared: Horror · Psychological Horror · Choices Matter

Lobotomy Corporation | Monster Management Simulation
Shared: Psychological Horror · Management · Horror

Unheard - Voices of Crime
Shared: Thriller · Mystery · Horror

Outlast
Shared: Horror · Psychological Horror · Atmospheric

Sally Face - Episode One
Shared: Psychological Horror · Horror · Mystery

Ghost Exorcism INC.
Shared: Horror · Psychological Horror · Investigation

MiSide
Shared: Psychological Horror · Horror · Thriller

The Dark Pictures Anthology: House of Ashes
Shared: Horror · Psychological Horror · Choices Matter

Return to Shironagasu Island
Shared: Horror · Psychological Horror · Mystery

Subliminal
Shared: Psychological Horror · Horror · Thriller

SIMULACRA
Shared: Horror · Psychological Horror · Detective

Oxenfree
Shared: Choices Matter · Horror · Mystery

Five Nights at Freddy's
Shared: Horror · Psychological Horror · Indie

SOMA
Shared: Psychological Horror · Horror · Atmospheric

Photomaly
Shared: Horror · Psychological Horror · Management