Games like Treasure Adventure World
Games like Treasure Adventure World include Hollow Knight, Hollow Knight: Silksong, LIMBO, ANIMAL WELL, and Ori and the Will of the Wisps. We matched them by the tags players give Treasure Adventure World on Steam (Adventure, Indie, Platformer, 2D, and Metroidvania): closest matches first, and among equally close ones the better-known games.

Hollow Knight
Shared: Platformer · Metroidvania · Indie

Hollow Knight: Silksong
Shared: Indie · Metroidvania · 2D

LIMBO
Shared: Indie · Platformer · Puzzle Platformer

ANIMAL WELL
Shared: Metroidvania · Platformer · Puzzle Platformer

Ori and the Will of the Wisps
Shared: Platformer · Metroidvania · Adventure

Owlboy
Shared: Adventure · Indie · Platformer

Dust: An Elysian Tail
Shared: Platformer · Indie · Adventure

Yoku's Island Express
Shared: Adventure · Platformer · Metroidvania

Dead Cells
Shared: Adventure · Metroidvania · 2D

Nine Sols
Shared: Metroidvania · 2D · Platformer

Gato Roboto
Shared: Indie · Adventure · Metroidvania

Celeste
Shared: Indie · Platformer · 2D

Iconoclasts
Shared: Indie · Adventure · Metroidvania

Rogue Legacy 2
Shared: Platformer · Indie · Metroidvania

Monster Boy and the Cursed Kingdom
Shared: Adventure · Indie · Platformer

Pikuniku
Shared: Adventure · Indie · Cute

Reventure
Shared: Adventure · Indie · 2D

Rain World
Shared: Indie · Platformer · 2D

MO:Astray
Shared: Indie · Adventure · Platformer

Phoenotopia: Awakening
Shared: Adventure · Platformer · 2D

Out There Somewhere
Shared: Platformer · Indie · Adventure

Skul: The Hero Slayer
Shared: Indie · 2D · Platformer

Axiom Verge
Shared: Indie · Metroidvania · Platformer

Öoo
Shared: Metroidvania · Puzzle Platformer · 2D