Games like Green Hat Battle
Games like Green Hat Battle include Hook, ATLYSS, PowerWash Simulator, Moncage, and Librarian: Tidy Up the Arcane Library!. We matched them by the tags players give Green Hat Battle on Steam (Casual, Action RPG, 3D Platformer, 3D, and Abstract): closest matches first, and among equally close ones the better-known games.

Hook
Shared: Casual · Relaxing · Abstract

ATLYSS
Shared: Action RPG · 3D Platformer · 3D

PowerWash Simulator
Shared: Casual · Relaxing · 3D

Moncage
Shared: Casual · Singleplayer · Indie

Librarian: Tidy Up the Arcane Library!
Shared: Casual · Relaxing · Singleplayer

Slime Rancher 2
Shared: Relaxing · Singleplayer · Casual

Refunct
Shared: 3D Platformer · Casual · Relaxing

A Short Hike
Shared: Relaxing · Casual · Indie

Unpacking
Shared: Casual · Relaxing · Singleplayer

Sizeable
Shared: Casual · Relaxing · 3D

Mountain
Shared: Casual · Relaxing · Indie

Monument Valley 3
Shared: Casual · Relaxing · Abstract

Assemble with Care
Shared: Casual · Relaxing · Indie

klocki
Shared: Casual · Relaxing · Singleplayer

Zup! S
Shared: Casual · Indie · Relaxing

House Flipper
Shared: Casual · Singleplayer · Relaxing

Superflight
Shared: Casual · Relaxing · Indie

Mirror 2: Project X
Shared: 3D · Casual · Singleplayer

Passpartout: The Starving Artist
Shared: Casual · Relaxing · Singleplayer

Potion Craft: Alchemist Simulator
Shared: Relaxing · Singleplayer · Casual

DAVE THE DIVER
Shared: Casual · Relaxing · Singleplayer

Hexcells
Shared: Casual · Indie · Singleplayer

LEGO® Builder's Journey
Shared: Casual · Relaxing · Indie

Chill with You : Lo-Fi Story
Shared: Casual · Relaxing · 3D