Games like Lucy´s World
Games like Lucy´s World include Pizza Tower, Katana ZERO, SANABI, pureya, and Celeste. We matched them by the tags players give Lucy´s World on Steam (Action, 2D Platformer, Casual, Pixel Graphics, and Arcade): closest matches first, and among equally close ones the better-known games.

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

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

SANABI
Shared: Action · Pixel Graphics · 2D Platformer

pureya
Shared: Casual · Arcade · 2D

Celeste
Shared: Pixel Graphics · 2D Platformer · Platformer

Sonic Origins
Shared: Action · 2D Platformer · Pixel Graphics

Timberman
Shared: Casual · Pixel Graphics · Action

Vampire Survivors
Shared: Pixel Graphics · 2D · Casual

Broforce
Shared: Action · Pixel Graphics · 2D

Downwell
Shared: Pixel Graphics · 2D Platformer · Action

Twin Shot Deluxe
Shared: Action · Casual · 2D Platformer

Super Meat Boy
Shared: 2D Platformer · Platformer · Pixel Graphics

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

Sonic Mania
Shared: Platformer · 2D · Pixel Graphics

Ninja Kiwi Archive
Shared: Casual · Action · Arcade

Webbed
Shared: 2D Platformer · Pixel Graphics · 2D

Gravity Circuit
Shared: Action · Pixel Graphics · Platformer

Sonic Superstars
Shared: Action · 2D Platformer · Casual

The Messenger
Shared: Pixel Graphics · Platformer · Action

UFO 50
Shared: Action · Pixel Graphics · Arcade

Exit the Gungeon
Shared: Action · Arcade · Pixel Graphics

A Dance of Fire and Ice
Shared: Arcade · Singleplayer · 2D

Shovel Knight: Treasure Trove
Shared: Pixel Graphics · Platformer · Action

8BitBoy™
Shared: Action · Casual · Platformer