Games like Unbound: Worlds Apart
Games like Unbound: Worlds Apart include Hollow Knight, Hollow Knight: Silksong, Ori and the Will of the Wisps, Nine Sols, and Rain World. We matched them by the tags players give Unbound: Worlds Apart on Steam (Indie, Adventure, Platformer, Atmospheric, 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 · Platformer

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

Nine Sols
Shared: Metroidvania · Platformer · Indie

Rain World
Shared: Atmospheric · Indie · Platformer

GRIS
Shared: Indie · Atmospheric · Adventure

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

MIO: Memories in Orbit
Shared: Platformer · Metroidvania · Indie

Celeste
Shared: Indie · Platformer · Difficult

Blasphemous
Shared: Metroidvania · Indie · 2D

LIMBO
Shared: Indie · Platformer · Atmospheric

Salt and Sanctuary
Shared: Metroidvania · Indie · 2D

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

Dead Cells
Shared: Adventure · Metroidvania · 2D

Constance
Shared: Platformer · Metroidvania · Indie

Axiom Verge
Shared: Indie · Metroidvania · Platformer

Rogue Legacy 2
Shared: Platformer · Indie · Metroidvania

SANABI
Shared: Adventure · Indie · Singleplayer

Gato Roboto
Shared: Indie · Adventure · Metroidvania

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

ANIMAL WELL
Shared: Metroidvania · Platformer · Exploration

Owlboy
Shared: Adventure · Indie · Platformer

ENDER LILIES: Quietus of the Knights
Shared: Metroidvania · Atmospheric · Singleplayer

Firewatch
Shared: Adventure · Atmospheric · Indie