Games like The Last Transmission
Games like The Last Transmission include SOMA, Amnesia: A Machine For Pigs, ROUTINE, Layers of Fear (2016), and Summer of '58. We matched them by the tags players give The Last Transmission on Steam (Psychological Horror, Interactive Fiction, Walking Simulator, Atmospheric, and Linear): closest matches first, and among equally close ones the better-known games.

SOMA
Shared: Psychological Horror · Atmospheric · Horror

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

ROUTINE
Shared: Psychological Horror · Atmospheric · Sci-fi

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

Summer of '58
Shared: Psychological Horror · Atmospheric · Walking Simulator

DON'T SCREAM
Shared: Psychological Horror · Atmospheric · Walking Simulator

Still Wakes the Deep
Shared: Psychological Horror · Walking Simulator · Horror

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

KARMA: The Dark World
Shared: Psychological Horror · Walking Simulator · Atmospheric

Outlast
Shared: Psychological Horror · Atmospheric · Horror

Mouthwashing
Shared: Psychological Horror · Atmospheric · Horror

Firewatch
Shared: Atmospheric · Walking Simulator · Adventure

Fears to Fathom - Ironbark Lookout
Shared: Psychological Horror · Atmospheric · Horror

Visage
Shared: Psychological Horror · Horror · Atmospheric

POOLS
Shared: Psychological Horror · Walking Simulator · Atmospheric

Poppy Playtime
Shared: Psychological Horror · Horror · Singleplayer

Scanner Sombre
Shared: Walking Simulator · Atmospheric · Psychological Horror

Welcome to Kowloon
Shared: Psychological Horror · Atmospheric · Walking Simulator

The Park®
Shared: Psychological Horror · Walking Simulator · Horror

From The Darkness
Shared: Psychological Horror · Horror · Walking Simulator

Dagon: by H. P. Lovecraft
Shared: Atmospheric · Psychological Horror · Horror

Subliminal
Shared: Psychological Horror · Realistic · Atmospheric

Outlast 2
Shared: Psychological Horror · Horror · Atmospheric

Lethal Company
Shared: Psychological Horror · Horror · Atmospheric