Games like Luna Anomaly
Games like Luna Anomaly include The Exit 8, What Remains of Edith Finch, Layers of Fear (2016), Inside the Backrooms, and MiSide. We matched them by the tags players give Luna Anomaly on Steam (Psychological Horror, Horror, Puzzle, Walking Simulator, and Choices Matter): closest matches first, and among equally close ones the better-known games.

The Exit 8
Shared: Puzzle · Horror · Walking Simulator

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

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

Inside the Backrooms
Shared: Horror · Psychological Horror · Puzzle

MiSide
Shared: Psychological Horror · Horror · First-Person

Garten of Banban
Shared: Horror · Psychological Horror · Puzzle

Scanner Sombre
Shared: Horror · Walking Simulator · Exploration

SOMA
Shared: Psychological Horror · Horror · Exploration

Poppy Playtime
Shared: Horror · Puzzle · Psychological Horror

Mouthwashing
Shared: Psychological Horror · Horror · Walking Simulator

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

Escape the Backrooms
Shared: Horror · Psychological Horror · Exploration

Lethal Company
Shared: Horror · Psychological Horror · First-Person

No, I'm not a Human
Shared: Psychological Horror · Horror · Choices Matter

The Cabin Factory
Shared: Psychological Horror · Horror · Walking Simulator

Garten of Banban 2
Shared: Horror · Psychological Horror · Puzzle

September 7th
Shared: Horror · Psychological Horror · Walking Simulator

Phasmophobia
Shared: Horror · Psychological Horror · First-Person

Psalm 5:9-13
Shared: Psychological Horror · Horror · Walking Simulator

Amnesia: The Dark Descent
Shared: Horror · Psychological Horror · Puzzle

Detention
Shared: Horror · Psychological Horror · Puzzle

Eclipsium
Shared: Psychological Horror · Walking Simulator · Horror

Dreamcore
Shared: Psychological Horror · Walking Simulator · Exploration

Firework
Shared: Horror · Puzzle · Psychological Horror