Games like MDNE
Games like MDNE include SOMA, Layers of Fear (2016), Lethal Company, Darkwood, and Outlast. We matched them by the tags players give MDNE on Steam (Psychological Horror, Hand-drawn, Minimalist, 2.5D, and Horror): closest matches first, and among equally close ones the better-known games.

SOMA
Shared: Psychological Horror · Horror · Atmospheric

Layers of Fear (2016)
Shared: Psychological Horror · Horror · Atmospheric

Lethal Company
Shared: Horror · Psychological Horror · Exploration

Darkwood
Shared: Psychological Horror · Horror · Atmospheric

Outlast
Shared: Psychological Horror · Horror · Atmospheric

Iron Lung
Shared: Psychological Horror · Horror · Atmospheric

OMORI
Shared: Psychological Horror · Hand-drawn · Horror

Amnesia: A Machine For Pigs
Shared: Horror · Psychological Horror · Atmospheric

[Chillas Art] The Convenience Store
Shared: Psychological Horror · Horror · Atmospheric

Backrooms: Escape Together
Shared: Psychological Horror · Horror · Atmospheric

Pacify
Shared: Psychological Horror · Horror · Exploration

Mouthwashing
Shared: Psychological Horror · Horror · Atmospheric

Escape the Backrooms
Shared: Psychological Horror · Horror · Exploration

SILENT HILL 2
Shared: Psychological Horror · Horror · Atmospheric

Firewatch
Shared: Atmospheric · Walking Simulator · Adventure

What Remains of Edith Finch
Shared: Atmospheric · Walking Simulator · Psychological Horror

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

Inside the Backrooms
Shared: Psychological Horror · Horror · Atmospheric

Amnesia: The Dark Descent
Shared: Psychological Horror · Horror · Atmospheric

Firework
Shared: Horror · Psychological Horror · Atmospheric

Visage
Shared: Psychological Horror · Horror · Atmospheric

Silver Pines
Shared: Horror · 2.5D · Exploration

SILENT HILL f
Shared: Psychological Horror · Horror · Atmospheric

Still Wakes the Deep
Shared: Psychological Horror · Horror · Atmospheric