Games like Square: Trial And Error
Games like Square: Trial And Error include Webbed, ANIMAL WELL, Slime Rancher, Turnip Boy Commits Tax Evasion, and FEZ. We matched them by the tags players give Square: Trial And Error on Steam (Exploration, Puzzle Platformer, Puzzle, Character Customization, and 2D): closest matches first, and among equally close ones the better-known games.

Webbed
Shared: Puzzle Platformer · Exploration · Cute

ANIMAL WELL
Shared: Exploration · Puzzle · Puzzle Platformer

Slime Rancher
Shared: Exploration · Cute · Funny

Turnip Boy Commits Tax Evasion
Shared: Exploration · Puzzle · Top-Down

FEZ
Shared: Puzzle · Exploration · Puzzle Platformer

Carto
Shared: Exploration · Puzzle · Cute

Öoo
Shared: Puzzle Platformer · Exploration · Puzzle

OneShot
Shared: Puzzle · Cute · Pixel Graphics

Cat Goes Fishing
Shared: 2D · Cute · Exploration

Supraland
Shared: Exploration · Puzzle Platformer · Puzzle

Snufkin: Melody of Moominvalley
Shared: Puzzle · 2D · Funny

LIMBO
Shared: Puzzle Platformer · Puzzle · 2D

Pikuniku
Shared: Puzzle · Cute · 2D

Supraland Six Inches Under
Shared: Puzzle Platformer · Exploration · Puzzle

Baba Is You
Shared: Puzzle · Cute · 2D

Stray
Shared: Exploration · Puzzle · Cute

Cult of the Lamb
Shared: Cute · Base Building · Character Customization

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

Human Fall Flat
Shared: Puzzle · Puzzle Platformer · Funny

COCOON
Shared: Exploration · Puzzle · Puzzle Platformer

Outcore: Desktop Adventure
Shared: Exploration · Puzzle · Cute

TUNIC
Shared: Exploration · Puzzle · Cute

There Is No Game: Wrong Dimension
Shared: Puzzle · Funny · 2D

Sanfu
Shared: Puzzle · 2D · Puzzle Platformer

