Games like Trauma
Games like Trauma include The Room, The Beginner's Guide, Gorogoa, There Is No Game: Wrong Dimension, and Florence. We matched them by the tags players give Trauma on Steam (Indie, Adventure, Casual, Point & Click, and Female Protagonist): closest matches first, and among equally close ones the better-known games.

The Room
Shared: Point & Click · Adventure · Indie

The Beginner's Guide
Shared: Indie · Adventure · Story Rich

Gorogoa
Shared: Indie · Puzzle · Casual

There Is No Game: Wrong Dimension
Shared: Indie · Adventure · Point & Click

Florence
Shared: Indie · Adventure · Casual

Moncage
Shared: Indie · Casual · Adventure

Call of the Sea
Shared: Adventure · Indie · Puzzle

The Room Two
Shared: Point & Click · Adventure · Indie

Assemble with Care
Shared: Indie · Casual · Female Protagonist

What Remains of Edith Finch
Shared: Adventure · Indie · Story Rich

Fran Bow
Shared: Point & Click · Adventure · Indie

GRIS
Shared: Indie · Adventure · Female Protagonist

A Story About My Uncle
Shared: Adventure · Indie · First-Person

Brothers - A Tale of Two Sons
Shared: Adventure · Indie · Puzzle

Broken Age
Shared: Adventure · Point & Click · Indie

The Room Three
Shared: Adventure · Indie · Point & Click

Firewatch
Shared: Adventure · Indie · First-Person

Samsara Room
Shared: Indie · Adventure · Point & Click

Syberia
Shared: Adventure · Point & Click · Casual

Iris.Fall
Shared: Adventure · Indie · Casual

Chants of Sennaar
Shared: Adventure · Indie · Puzzle

Morphopolis
Shared: Indie · Point & Click · Casual

The White Door
Shared: Indie · Adventure · Point & Click

Silence
Shared: Adventure · Point & Click · Indie