Games like Good Knight's Adventures
Games like Good Knight's Adventures include Celeste, SANABI, Super Meat Boy, Webbed, and Downwell. We matched them by the tags players give Good Knight's Adventures on Steam (Adventure, Platformer, 2D Platformer, Hidden Object, and Precision Platformer): closest matches first, and among equally close ones the better-known games.

Celeste
Shared: Precision Platformer · Platformer · 2D Platformer

SANABI
Shared: Adventure · 2D Platformer · Pixel Graphics

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

Webbed
Shared: 2D Platformer · Platformer · Puzzle Platformer

Downwell
Shared: Precision Platformer · Platformer · 2D Platformer

Jump King
Shared: Adventure · Precision Platformer · Platformer

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

VVVVVV
Shared: Platformer · Precision Platformer · 2D Platformer

Owlboy
Shared: Adventure · Platformer · Pixel Graphics

Sonic Origins
Shared: Adventure · 2D Platformer · Platformer

Katana ZERO
Shared: Platformer · 2D Platformer · Action

Blasphemous 2
Shared: Adventure · 2D Platformer · Fantasy

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

Trine 5: A Clockwork Conspiracy
Shared: Adventure · Platformer · Action

LIMBO
Shared: Platformer · Puzzle Platformer · Adventure

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

Phoenotopia: Awakening
Shared: Adventure · Platformer · Action

Out There Somewhere
Shared: Platformer · Adventure · Pixel Graphics

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

MO:Astray
Shared: Adventure · Platformer · Action

Trine Enchanted Edition
Shared: 2D Platformer · Puzzle Platformer · Fantasy

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

Songs for a Hero - Definitive Edition
Shared: Adventure · 2D Platformer · Platformer

FEZ
Shared: Platformer · Adventure · Pixel Graphics