Games like Pandemic Train
Games like Pandemic Train include This War of Mine, The Long Dark, The Forest, S.T.A.L.K.E.R. 2: Heart of Chornobyl - Standard Edition, and RimWorld. We matched them by the tags players give Pandemic Train on Steam (Survival, Trains, Atmospheric, Strategy, and Singleplayer): closest matches first, and among equally close ones the better-known games.

This War of Mine
Shared: Survival · Atmospheric · Strategy

The Long Dark
Shared: Survival · Atmospheric · Singleplayer

The Forest
Shared: Survival · Crafting · Action

S.T.A.L.K.E.R. 2: Heart of Chornobyl - Standard Edition
Shared: Survival · Atmospheric · Singleplayer

RimWorld
Shared: Survival · Strategy · Singleplayer

Pacific Drive
Shared: Survival · Atmospheric · Exploration

Fallout 4
Shared: Singleplayer · Atmospheric · Exploration

Metro Exodus
Shared: Singleplayer · Atmospheric · Survival

Green Hell
Shared: Survival · Singleplayer · Action

Subnautica
Shared: Survival · Exploration · Singleplayer

Frostpunk
Shared: Survival · Strategy · Singleplayer

The Last Caretaker
Shared: Survival · Crafting · Singleplayer

Ancestors: The Humankind Odyssey
Shared: Survival · Singleplayer · Exploration

Sons Of The Forest
Shared: Survival · Crafting · Exploration

Forever Skies
Shared: Survival · Singleplayer · Exploration

Frostpunk 2
Shared: Survival · Strategy · Singleplayer

Beholder
Shared: Choices Matter · Strategy · Atmospheric

Dune: Awakening
Shared: Survival · Exploration · Singleplayer

Once Human
Shared: Survival · Action · Exploration

Don't Starve
Shared: Survival · Singleplayer · Crafting

The Escapists
Shared: Strategy · Singleplayer · Survival

Don't Starve Together
Shared: Survival · Crafting · Atmospheric

Rise of the Tomb Raider™
Shared: Singleplayer · Action · Survival

Far Cry® Primal
Shared: Survival · Action · Singleplayer