Games like Horned Knight
Games like Horned Knight include Super Meat Boy, Celeste, SANABI, Shovel Knight: Treasure Trove, and Katana ZERO. We matched them by the tags players give Horned Knight on Steam (Action, Indie, Platformer, 2D Platformer, and Precision Platformer): closest matches first, and among equally close ones the better-known games.

Super Meat Boy
Shared: Platformer · Indie · Precision Platformer

Celeste
Shared: Precision Platformer · Indie · Platformer

SANABI
Shared: Action · 2D Platformer · Pixel Graphics

Shovel Knight: Treasure Trove
Shared: Platformer · Indie · Action

Katana ZERO
Shared: Action · Platformer · Pixel Graphics

Skul: The Hero Slayer
Shared: Action · Indie · Pixel Graphics

Broforce
Shared: Action · Platformer · Indie

VVVVVV
Shared: Platformer · Indie · Precision Platformer

Ambidextro
Shared: Action · Precision Platformer · 2D Platformer

Jump King
Shared: Indie · Precision Platformer · Platformer

Pizza Tower
Shared: Indie · 2D Platformer · Platformer

Downwell
Shared: Indie · Precision Platformer · Platformer

Gravity Circuit
Shared: Action · Indie · Platformer

Rogue Legacy
Shared: Platformer · Indie · Action

The Messenger
Shared: Platformer · Indie · Action

NINJA GAIDEN: Ragebound
Shared: Action · Platformer · 2D Platformer

Bloodstained: Curse of the Moon
Shared: Action · Platformer · Pixel Graphics

Blasphemous
Shared: Indie · Pixel Graphics · Action

BlazBlue Entropy Effect
Shared: Action · Platformer · 2D

Geometry Dash
Shared: Precision Platformer · 2D · Platformer

Huntdown
Shared: Action · Side Scroller · Pixel Graphics

Azure Striker Gunvolt
Shared: Action · Indie · Platformer

Dust: An Elysian Tail
Shared: Action · Platformer · Indie

Momodora: Reverie Under The Moonlight
Shared: 2D Platformer · Side Scroller · Pixel Graphics