Games like Observe
Games like Observe include The Talos Principle, LIMBO, Baba Is You, Creaks, and Antichamber. We matched them by the tags players give Observe on Steam (Puzzle, Time Manipulation, Surreal, Philosophical, and Stylized): closest matches first, and among equally close ones the better-known games.

The Talos Principle
Shared: Puzzle · Philosophical · Adventure

LIMBO
Shared: Puzzle · Adventure · 2D

Baba Is You
Shared: Puzzle · Logic · Difficult

Creaks
Shared: Puzzle · Surreal · Stylized

Antichamber
Shared: Puzzle · Surreal · Adventure

OneShot
Shared: Puzzle · Adventure · Indie

The Witness
Shared: Puzzle · Adventure · Difficult

ANIMAL WELL
Shared: Puzzle · 2D · Adventure

Chants of Sennaar
Shared: Puzzle · Adventure · Stylized

Gorogoa
Shared: Puzzle · Stylized · Adventure

Manifold Garden
Shared: Puzzle · Surreal · Philosophical

The Rewinder
Shared: Puzzle · Adventure · Mystery

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

Rusty Lake Paradise
Shared: Puzzle · Adventure · Indie

Viewfinder
Shared: Puzzle · Surreal · Adventure

The Bridge
Shared: Surreal · Puzzle · 2D

Servant of the Lake
Shared: Puzzle · Adventure · Surreal

Superliminal
Shared: Puzzle · Surreal · Psychological

Return of the Obra Dinn
Shared: Puzzle · Mystery · Adventure

Twelve Minutes
Shared: Puzzle · Adventure · Time Manipulation

The White Door
Shared: Puzzle · Adventure · Indie

Void Stranger
Shared: Puzzle · Adventure · Mystery

Samsara Room
Shared: Puzzle · Adventure · Surreal

Moncage
Shared: Puzzle · Surreal · Adventure