Games like What Has Come Before
Games like What Has Come Before include Antichamber, Viewfinder, Manifold Garden, Moncage, and NaissanceE. We matched them by the tags players give What Has Come Before on Steam (Puzzle, First-Person, Surreal, Singleplayer, and Atmospheric): closest matches first, and among equally close ones the better-known games.

Antichamber
Shared: Puzzle · First-Person · Surreal

Viewfinder
Shared: Puzzle · First-Person · Singleplayer

Manifold Garden
Shared: Puzzle · Surreal · First-Person

Moncage
Shared: Puzzle · Singleplayer · Surreal

NaissanceE
Shared: Atmospheric · First-Person · Abstract

LIMBO
Shared: Puzzle · Puzzle Platformer · Atmospheric

The Witness
Shared: Puzzle · First-Person · Singleplayer

Superliminal
Shared: Puzzle · First-Person · Surreal

Portal 2
Shared: Puzzle · Singleplayer · First-Person

Kairo
Shared: Puzzle · First-Person · Atmospheric

COCOON
Shared: Puzzle · Adventure · Atmospheric

Portal
Shared: Puzzle · First-Person · Singleplayer

The Unfinished Swan
Shared: Puzzle · Surreal · Adventure

Lingo
Shared: Puzzle · First-Person · Surreal

The Beginner's Guide
Shared: First-Person · Atmospheric · Singleplayer

Little Nightmares
Shared: Atmospheric · Singleplayer · Puzzle

Chants of Sennaar
Shared: Puzzle · Singleplayer · Adventure

Blue Prince
Shared: Puzzle · Singleplayer · First-Person

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

Poppy Playtime
Shared: Puzzle · Singleplayer · First-Person

FAR: Lone Sails
Shared: Atmospheric · Singleplayer · Puzzle

Obduction
Shared: Puzzle · First-Person · Adventure

Stray
Shared: Singleplayer · Atmospheric · Adventure

The Room
Shared: Puzzle · Singleplayer · Atmospheric