Games like Perspectrum
Games like Perspectrum include Ori and the Will of the Wisps, FEZ, Hollow Knight, ANIMAL WELL, and Hollow Knight: Silksong. We matched them by the tags players give Perspectrum on Steam (Adventure, Indie, Action, Puzzle Platformer, and Retro): closest matches first, and among equally close ones the better-known games.

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

FEZ
Shared: Indie · Adventure · Exploration

Hollow Knight
Shared: Indie · Platformer · 2D

ANIMAL WELL
Shared: Exploration · Puzzle Platformer · Pixel Graphics

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

Out There Somewhere
Shared: Indie · Adventure · Pixel Graphics

Shovel Knight: Treasure Trove
Shared: Indie · Retro · Adventure

Celeste
Shared: Indie · Pixel Graphics · Adventure

GRIS
Shared: Indie · Adventure · Beautiful

SANABI
Shared: Action · Adventure · Pixel Graphics

LIMBO
Shared: Indie · Puzzle Platformer · Adventure

Gato Roboto
Shared: Indie · Action · Adventure

Webbed
Shared: Puzzle Platformer · Pixel Graphics · Exploration

MO:Astray
Shared: Indie · Adventure · Action

Axiom Verge
Shared: Indie · Action · Adventure

OneShot
Shared: Indie · Pixel Graphics · Adventure

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

Reventure
Shared: Adventure · Indie · Pixel Graphics

Skul: The Hero Slayer
Shared: Indie · Action · Pixel Graphics

Hyper Light Drifter
Shared: Indie · Adventure · Pixel Graphics

Terraria
Shared: Adventure · 2D · Pixel Graphics

Rain World
Shared: Indie · Exploration · Adventure

A Short Hike
Shared: Adventure · Indie · Exploration

Stray
Shared: Adventure · Exploration · Singleplayer