Games like Lightmatter Anniversary
Games like Lightmatter Anniversary include The Talos Principle 2, Portal 2, COCOON, Indiana Jones and the Great Circle, and Viewfinder. We matched them by the tags players give Lightmatter Anniversary on Steam (Adventure, Puzzle, Action-Adventure, Walking Simulator, and Interactive Fiction): closest matches first, and among equally close ones the better-known games.

The Talos Principle 2
Shared: Puzzle · Puzzle Platformer · Walking Simulator

Portal 2
Shared: Puzzle · Puzzle Platformer · First-Person

COCOON
Shared: Adventure · Puzzle · Puzzle Platformer

Indiana Jones and the Great Circle
Shared: Action-Adventure · Puzzle · Adventure

Viewfinder
Shared: Puzzle · Puzzle Platformer · Adventure

Supraland
Shared: Adventure · Puzzle Platformer · Puzzle

The Unfinished Swan
Shared: Adventure · Puzzle · Puzzle Platformer

Killer Frequency
Shared: Adventure · Puzzle · Interactive Fiction

Portal
Shared: Puzzle · Puzzle Platformer · 3D Platformer

The Exit 8
Shared: Puzzle · Walking Simulator · Exploration

Riven
Shared: Adventure · Puzzle · Exploration

Murders on the Yangtze River
Shared: Puzzle · Adventure · Puzzle Platformer

It Takes Two
Shared: Puzzle · Adventure · Action-Adventure

Mirror's Edge™
Shared: Action-Adventure · Puzzle · 3D Platformer

The Witness
Shared: Puzzle · Exploration · Adventure

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

Amnesia: Rebirth
Shared: Action-Adventure · Puzzle · Adventure

Lorelei and the Laser Eyes
Shared: Adventure · Puzzle · Action-Adventure

Blue Prince
Shared: Puzzle · Exploration · Adventure

Firewatch
Shared: Adventure · Walking Simulator · Exploration

NaissanceE
Shared: Adventure · Walking Simulator · Exploration

A Plague Tale: Requiem
Shared: Adventure · Action-Adventure · Exploration

What Remains of Edith Finch
Shared: Walking Simulator · Adventure · Exploration

Trine 3: The Artifacts of Power
Shared: Action-Adventure · Puzzle Platformer · 3D Platformer