Games like They Left Us Here
Games like They Left Us Here include The Exit 8, SOMA, What Remains of Edith Finch, Layers of Fear (2016), and MiSide. We matched them by the tags players give They Left Us Here on Steam (Exploration, Puzzle, Walking Simulator, 3D, and First-Person): closest matches first, and among equally close ones the better-known games.

The Exit 8
Shared: Exploration · Puzzle · Walking Simulator

SOMA
Shared: Horror · Psychological Horror · Exploration

What Remains of Edith Finch
Shared: Walking Simulator · Exploration · First-Person

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

MiSide
Shared: Psychological Horror · First-Person · Horror

Inside the Backrooms
Shared: Puzzle · Horror · Exploration

Scanner Sombre
Shared: Exploration · Walking Simulator · Horror

Mouthwashing
Shared: Horror · Psychological Horror · Walking Simulator

Garten of Banban
Shared: Horror · First-Person · Puzzle

Superliminal
Shared: Puzzle · First-Person · Surreal

Amnesia: A Machine For Pigs
Shared: Walking Simulator · Horror · Exploration

Lethal Company
Shared: First-Person · Horror · Exploration

Outer Wilds
Shared: Exploration · Puzzle · Story Rich

Firewatch
Shared: Walking Simulator · Exploration · First-Person

September 7th
Shared: Exploration · Walking Simulator · Horror

The Talos Principle 2
Shared: Puzzle · Exploration · First-Person

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

INFRA
Shared: Exploration · Puzzle · Walking Simulator

Summer of '58
Shared: Horror · Walking Simulator · First-Person

Dreamcore
Shared: Exploration · Walking Simulator · First-Person

Escape the Backrooms
Shared: Horror · Exploration · Psychological Horror

Psalm 5:9-13
Shared: Exploration · Horror · Psychological Horror

Poppy Playtime
Shared: Puzzle · Horror · First-Person

POOLS
Shared: Walking Simulator · Exploration · Psychological Horror