Games like Dark Are The Crypts: The Lost Idea
Games like Dark Are The Crypts: The Lost Idea include MiSide, Layers of Fear (2016), Manifold Garden, Viewfinder, and Little Nightmares II. We matched them by the tags players give Dark Are The Crypts: The Lost Idea on Steam (Adventure, Psychological Horror, Psychedelic, Philosophical, and Abstract): closest matches first, and among equally close ones the better-known games.

MiSide
Shared: Psychological Horror · First-Person · Atmospheric

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

Manifold Garden
Shared: Abstract · Psychedelic · First-Person

Viewfinder
Shared: First-Person · Adventure · Abstract

Little Nightmares II
Shared: Adventure · Psychological Horror · Atmospheric

The Talos Principle
Shared: Philosophical · First-Person · Atmospheric

Little Nightmares
Shared: Adventure · Atmospheric · Psychological Horror

Superliminal
Shared: First-Person · Psychedelic · Psychological Horror

The Beginner's Guide
Shared: Adventure · First-Person · Atmospheric

Outlast
Shared: Psychological Horror · First-Person · Atmospheric

MOLE
Shared: Adventure · Psychological Horror · Atmospheric

The Last Campfire
Shared: Adventure · Atmospheric · Puzzle

The Room Two
Shared: Adventure · Atmospheric · Hidden Object

Poppy Playtime
Shared: Psychological Horror · First-Person · Adventure

Antichamber
Shared: First-Person · Adventure · Abstract

KARMA: The Dark World
Shared: Psychological Horror · First-Person · Atmospheric

What Remains of Edith Finch
Shared: Adventure · Atmospheric · First-Person

The Room
Shared: Adventure · Atmospheric · Puzzle

Layers of Fear
Shared: Psychological Horror · Adventure · Psychedelic

The Room Three
Shared: Adventure · Atmospheric · Puzzle

The Swapper
Shared: Adventure · Atmospheric · Philosophical

SOMA
Shared: Psychological Horror · Atmospheric · First-Person

Milk inside a bag of milk inside a bag of milk
Shared: Psychological Horror · Adventure · Abstract

Firewatch
Shared: Adventure · Atmospheric · First-Person