Games like The Looker
Games like The Looker include The Stanley Parable, The Witness, Firewatch, Portal, and Slime Rancher. We matched them by the tags players give The Looker on Steam (Puzzle, Parody , Comedy, Funny, and Exploration): closest matches first, and among equally close ones the better-known games.

The Stanley Parable
Shared: Comedy · Funny · First-Person

The Witness
Shared: Puzzle · Exploration · First-Person

Firewatch
Shared: First-Person · Walking Simulator · Atmospheric

Portal
Shared: Puzzle · First-Person · Comedy

Slime Rancher
Shared: Exploration · Singleplayer · First-Person

THE CORRIDOR
Shared: Comedy · Funny · Singleplayer

Portal 2
Shared: Puzzle · Singleplayer · First-Person

Jazzpunk: Director's Cut
Shared: Comedy · Funny · Exploration

Big Walk
Shared: Puzzle · Exploration · Funny

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

There Is No Game: Wrong Dimension
Shared: Puzzle · Funny · Comedy

Outer Wilds
Shared: Exploration · Puzzle · Singleplayer

The Exit 8
Shared: Puzzle · Exploration · Walking Simulator

The Long Dark
Shared: Exploration · First-Person · Singleplayer

INFRA
Shared: Puzzle · Exploration · First-Person

Blue Prince
Shared: Puzzle · Exploration · Singleplayer

Antichamber
Shared: Puzzle · First-Person · Exploration

Little Inferno
Shared: Puzzle · Funny · Comedy

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

Fallout 4
Shared: Exploration · Singleplayer · First-Person

Chants of Sennaar
Shared: Puzzle · Singleplayer · Exploration

Riven
Shared: Puzzle · Exploration · First-Person

Quern - Undying Thoughts
Shared: Puzzle · Exploration · Singleplayer

POSTAL 2
Shared: Funny · Comedy · First-Person