Games like Perfect World
Games like Perfect World include Pseudoregalia, Hollow Knight, Sonic Frontiers, Road 96, and Wavetale. We matched them by the tags players give Perfect World on Steam (Exploration, 3D Platformer, Platformer, 3D, and Psychedelic): closest matches first, and among equally close ones the better-known games.

Pseudoregalia
Shared: 3D Platformer · Exploration · Platformer

Hollow Knight
Shared: Platformer · Exploration · Indie

Sonic Frontiers
Shared: 3D Platformer · Exploration · 3D

Road 96
Shared: Choices Matter · Colorful · Exploration

Wavetale
Shared: 3D Platformer · Platformer · 3D

Yellow Taxi Goes Vroom
Shared: 3D Platformer · Exploration · 3D

Toree 3D
Shared: 3D Platformer · Platformer · 3D

Sable
Shared: Exploration · Atmospheric · Choices Matter

A Hat in Time
Shared: 3D Platformer · Platformer · Exploration

COCOON
Shared: Exploration · 3D · Adventure

Corn Kidz 64
Shared: 3D Platformer · Exploration · Controller

Orbo's Odyssey
Shared: 3D Platformer · Psychedelic · Exploration

Toree 2
Shared: 3D Platformer · Platformer · Exploration

Funi Raccoon Game
Shared: 3D Platformer · Exploration · Platformer

Night in the Woods
Shared: Exploration · Choices Matter · Atmospheric

Phantom Abyss
Shared: 3D Platformer · Exploration · Platformer

Mirror's Edge™
Shared: Exploration · 3D Platformer · Platformer

Exo One
Shared: Exploration · 3D Platformer · Atmospheric

Refunct
Shared: 3D Platformer · Platformer · Atmospheric

Hollow Knight: Silksong
Shared: Exploration · Platformer · Indie

Sonic Adventure DX
Shared: Platformer · 3D Platformer · 3D

Yooka-Laylee
Shared: 3D Platformer · Platformer · Exploration

PEAK
Shared: Exploration · 3D · Adventure

Spark the Electric Jester 3
Shared: 3D Platformer · 3D · Platformer

