Games like The God Unit
Games like The God Unit include Portal, Portal 2, Viewfinder, Quantum Conundrum, and The Talos Principle 2. We matched them by the tags players give The God Unit on Steam (Logic, Puzzle, Physics, First-Person, and Singleplayer): closest matches first, and among equally close ones the better-known games.

Portal
Shared: Puzzle · First-Person · Puzzle Platformer

Portal 2
Shared: Puzzle · Singleplayer · First-Person

Viewfinder
Shared: Puzzle · First-Person · Puzzle Platformer

Quantum Conundrum
Shared: Puzzle · Puzzle Platformer · First-Person

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

Supraland
Shared: Puzzle Platformer · First-Person · Physics

The Ball
Shared: Puzzle · First-Person · Puzzle Platformer

Superliminal
Shared: Puzzle · First-Person · Physics

The Talos Principle
Shared: Puzzle · First-Person · Singleplayer

Baba Is You
Shared: Puzzle · Logic · Singleplayer

The Bridge
Shared: Physics · Puzzle Platformer · Puzzle

Gravity Field
Shared: Puzzle · Physics · Logic

Hardspace: Shipbreaker
Shared: Physics · Singleplayer · Puzzle

Zup! S
Shared: Puzzle · Physics · Singleplayer

Q.U.B.E: Director's Cut
Shared: Puzzle · First-Person · Physics

LIMBO
Shared: Puzzle · Puzzle Platformer · Singleplayer

Poppy Playtime
Shared: Puzzle · Singleplayer · First-Person

Human Fall Flat
Shared: Puzzle · Physics · Puzzle Platformer

The Entropy Centre
Shared: Puzzle · First-Person · Sci-fi

Defy Gravity Extended
Shared: Puzzle · Puzzle Platformer · Singleplayer

Lightmatter
Shared: Logic · Puzzle · First-Person

Teardown
Shared: Physics · Singleplayer · First-Person

SUPERHOT
Shared: Singleplayer · First-Person · Puzzle

ChromaGun
Shared: Puzzle · First-Person · Puzzle Platformer