Games like Null Path
Games like Null Path include Celeste, ANIMAL WELL, Super Meat Boy, Hollow Knight, and LIMBO. We matched them by the tags players give Null Path on Steam (Precision Platformer, Puzzle Platformer, Adventure, Metroidvania, and 2D Platformer): closest matches first, and among equally close ones the better-known games.

Celeste
Shared: Precision Platformer · Pixel Graphics · Platformer

ANIMAL WELL
Shared: Metroidvania · Puzzle Platformer · Pixel Graphics

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

Hollow Knight
Shared: Metroidvania · Platformer · Adventure

LIMBO
Shared: Puzzle Platformer · Platformer · Adventure

Leap Year
Shared: Precision Platformer · Puzzle Platformer · 2D Platformer

Öoo
Shared: Puzzle Platformer · Metroidvania · 2D Platformer

Owlboy
Shared: Adventure · Pixel Graphics · Metroidvania

Hollow Knight: Silksong
Shared: Metroidvania · Platformer · Adventure

Dead Cells
Shared: Adventure · Metroidvania · Pixel Graphics

VVVVVV
Shared: Precision Platformer · Pixel Graphics · Platformer

FEZ
Shared: Platformer · Pixel Graphics · Adventure

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

SANABI
Shared: Pixel Graphics · Adventure · 2D Platformer

Planet of Lana
Shared: Puzzle Platformer · 2D Platformer · Adventure

INSIDE
Shared: Puzzle Platformer · Adventure · Singleplayer

Little Nightmares
Shared: Adventure · Puzzle Platformer · Singleplayer

Out There Somewhere
Shared: Platformer · Adventure · Pixel Graphics

Braid
Shared: Puzzle Platformer · 2D Platformer · Platformer

Rain World
Shared: Platformer · Pixel Graphics · Adventure

Mind Over Magnet
Shared: Puzzle Platformer · Adventure · 2D Platformer

Portal 2
Shared: Platformer · Puzzle Platformer · Singleplayer

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

Jump King
Shared: Precision Platformer · Adventure · Pixel Graphics