Games like Paladin's Passage
Games like Paladin's Passage include Celeste, Super Meat Boy, Portal 2, INSIDE, and LIMBO. We matched them by the tags players give Paladin's Passage on Steam (Platformer, Indie, Singleplayer, Precision Platformer, and 2D Platformer): closest matches first, and among equally close ones the better-known games.

Celeste
Shared: Precision Platformer · Indie · Platformer

Super Meat Boy
Shared: Platformer · Precision Platformer · Indie

Portal 2
Shared: Platformer · Singleplayer · Puzzle

INSIDE
Shared: Indie · Puzzle Platformer · Singleplayer

LIMBO
Shared: Indie · Platformer · Puzzle Platformer

Trine 2: Complete Story
Shared: Platformer · Puzzle Platformer · 2D Platformer

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

Braid
Shared: Indie · Platformer · 2D Platformer

Defy Gravity Extended
Shared: Platformer · Indie · Puzzle Platformer

Downwell
Shared: Precision Platformer · Indie · Platformer

Seen
Shared: Indie · Singleplayer · Platformer

VVVVVV
Shared: Platformer · Indie · Precision Platformer

FEZ
Shared: Platformer · Indie · Singleplayer

Geometry Dash
Shared: Platformer · Precision Platformer · Singleplayer

Pizza Tower
Shared: Indie · 2D Platformer · Platformer

Little Nightmares
Shared: Singleplayer · Indie · Puzzle Platformer

Rogue Legacy 2
Shared: Platformer · Indie · Arcade

Rogue Legacy
Shared: Platformer · Indie · Singleplayer

Thomas Was Alone
Shared: Platformer · Precision Platformer · 2D Platformer

Portal
Shared: Singleplayer · Puzzle Platformer · Puzzle

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

Hollow Knight
Shared: Platformer · Indie · Singleplayer

SANABI
Shared: 2D Platformer · Singleplayer · Indie

FAR: Lone Sails
Shared: Singleplayer · Indie · Puzzle