Games like Little Devils
Games like Little Devils include Celeste, Super Meat Boy, SANABI, VVVVVV, and Jump King. We matched them by the tags players give Little Devils on Steam (Difficult, Precision Platformer, Pixel Graphics, 2D Platformer, and Short): closest matches first, and among equally close ones the better-known games.

Celeste
Shared: Difficult · Precision Platformer · Pixel Graphics

Super Meat Boy
Shared: Precision Platformer · Difficult · 2D Platformer

SANABI
Shared: Pixel Graphics · 2D Platformer · Adventure

VVVVVV
Shared: Precision Platformer · Pixel Graphics · Difficult

Jump King
Shared: Difficult · Precision Platformer · Pixel Graphics

Geometry Dash
Shared: Difficult · Precision Platformer · 2D

Pizza Tower
Shared: 2D Platformer · Pixel Graphics · Platformer

Rain World
Shared: Difficult · Pixel Graphics · 2D

Downwell
Shared: Precision Platformer · Pixel Graphics · Difficult

Shovel Knight: Treasure Trove
Shared: Pixel Graphics · Difficult · Adventure

Hollow Knight
Shared: Difficult · 2D · Platformer

The End Is Nigh
Shared: Precision Platformer · Difficult · Adventure

Alex Kidd in Miracle World DX
Shared: Precision Platformer · Difficult · 2D Platformer

Hollow Knight: Silksong
Shared: Difficult · 2D · Singleplayer

Hyper Light Drifter
Shared: Pixel Graphics · Difficult · Adventure

Katana ZERO
Shared: Pixel Graphics · 2D Platformer · Difficult

Titan Souls
Shared: Difficult · Pixel Graphics · Adventure

The Messenger
Shared: Pixel Graphics · 2D · Platformer

Out There Somewhere
Shared: Pixel Graphics · Adventure · Platformer

Angry Video Game Nerd Adventures
Shared: Difficult · Pixel Graphics · Adventure

Skul: The Hero Slayer
Shared: Pixel Graphics · Difficult · 2D

Ambidextro
Shared: Precision Platformer · Pixel Graphics · 2D Platformer

Lone Fungus
Shared: Pixel Graphics · 2D Platformer · Adventure

Bread & Fred
Shared: Pixel Graphics · Difficult · 2D Platformer