Games like Yoku's Island Express
Games like Yoku's Island Express include Hollow Knight, Hollow Knight: Silksong, Ori and the Will of the Wisps, Slime Rancher, and GRIS. We matched them by the tags players give Yoku's Island Express on Steam (Pinball, Metroidvania, Adventure, Platformer, and Singleplayer): closest matches first, and among equally close ones the better-known games.

Hollow Knight
Shared: Metroidvania · Platformer · Singleplayer

Hollow Knight: Silksong
Shared: Metroidvania · Indie · Singleplayer

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

Slime Rancher
Shared: Adventure · Singleplayer · Cute

GRIS
Shared: Adventure · Indie · Platformer

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

Supraland
Shared: Metroidvania · Adventure · Singleplayer

Celeste
Shared: Platformer · Indie · Singleplayer

FEZ
Shared: Platformer · Indie · Adventure

LIMBO
Shared: Platformer · Indie · Puzzle Platformer

A Hat in Time
Shared: Cute · Adventure · Platformer

ANIMAL WELL
Shared: Metroidvania · Platformer · Adventure

SteamWorld Dig 2
Shared: Metroidvania · Adventure · Platformer

BEEP
Shared: Adventure · Platformer · Indie

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

Dead Cells
Shared: Adventure · Metroidvania · Platformer

Axiom Verge
Shared: Metroidvania · Platformer · Indie

Webbed
Shared: Cute · Platformer · Puzzle Platformer

Gato Roboto
Shared: Metroidvania · Adventure · Indie

Iconoclasts
Shared: Metroidvania · Indie · Adventure

Seasons after Fall
Shared: Adventure · Platformer · Indie

Nine Sols
Shared: Metroidvania · Platformer · Indie

Wonder Boy: The Dragon's Trap
Shared: Adventure · Platformer · Metroidvania

Constance
Shared: Metroidvania · Platformer · Singleplayer