Games like P1: Anchor Light
Games like P1: Anchor Light include The Painscreek Killings, What Remains of Edith Finch, Blue Prince, The Room Two, and Phasmophobia. We matched them by the tags players give P1: Anchor Light on Steam (Hidden Object, Investigation, Puzzle, Demons, and Mystery): closest matches first, and among equally close ones the better-known games.

The Painscreek Killings
Shared: Investigation · Mystery · Puzzle

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

Blue Prince
Shared: Puzzle · Investigation · Mystery

The Room Two
Shared: Puzzle · Hidden Object · Mystery

Phasmophobia
Shared: Investigation · Psychological Horror · First-Person

The Room
Shared: Puzzle · Mystery · Hidden Object

The Exit 8
Shared: Puzzle · Walking Simulator · Exploration

Poppy Playtime
Shared: Puzzle · First-Person · Mystery

Firewatch
Shared: Mystery · Walking Simulator · First-Person

The House of Da Vinci
Shared: Hidden Object · Puzzle · Mystery

INFRA
Shared: Puzzle · Exploration · Walking Simulator

Platform 8
Shared: Hidden Object · Puzzle · Walking Simulator

The Forgotten City
Shared: Mystery · Investigation · Exploration

Outer Wilds
Shared: Mystery · Exploration · Puzzle

Quern - Undying Thoughts
Shared: Puzzle · Mystery · Walking Simulator

The Room 4: Old Sins
Shared: Puzzle · Mystery · Hidden Object

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

The Witness
Shared: Puzzle · First-Person · Exploration

The Room Three
Shared: Puzzle · Mystery · Hidden Object

Amnesia: A Machine For Pigs
Shared: Walking Simulator · First-Person · Mystery

Firework
Shared: Puzzle · Mystery · Psychological Horror

Metel - Horror Escape
Shared: Puzzle · Hidden Object · First-Person

Inside the Backrooms
Shared: Puzzle · Psychological Horror · Horror

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