Games like KILL HIM
Games like KILL HIM include Hollow Knight, Ori and the Will of the Wisps, F.I.S.T.: Forged In Shadow Torch, Hollow Knight: Silksong, and Constance. We matched them by the tags players give KILL HIM on Steam (Metroidvania, Adventure, Platformer, Action, and 2D Platformer): closest matches first, and among equally close ones the better-known games.

Hollow Knight
Shared: Metroidvania · Platformer · Singleplayer

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

F.I.S.T.: Forged In Shadow Torch
Shared: Metroidvania · Platformer · Action

Hollow Knight: Silksong
Shared: Metroidvania · Platformer · Singleplayer

Constance
Shared: Metroidvania · Platformer · Action

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

Nine Sols
Shared: Metroidvania · Platformer · Action

Rogue Legacy 2
Shared: Metroidvania · Platformer · Action

SANABI
Shared: Action · Adventure · 2D Platformer

Prince of Persia The Lost Crown
Shared: Metroidvania · Action · 2D Platformer

MIO: Memories in Orbit
Shared: Metroidvania · Platformer · Singleplayer

Skul: The Hero Slayer
Shared: Action · Metroidvania · Indie

Well Dweller
Shared: Metroidvania · Action · Adventure

Dead Cells
Shared: Adventure · Metroidvania · Platformer

Wonder Boy: The Dragon's Trap
Shared: Adventure · Platformer · Action

Phoenotopia: Awakening
Shared: Adventure · Metroidvania · Platformer

The Messenger
Shared: Metroidvania · Platformer · Action

Souldiers
Shared: Metroidvania · Action · Adventure

Monster Boy and the Cursed Kingdom
Shared: Adventure · Metroidvania · Action

Blasphemous 2
Shared: Metroidvania · Adventure · 2D Platformer

Owlboy
Shared: Adventure · Metroidvania · Platformer

DEVIATOR
Shared: Metroidvania · Action · Platformer

SHINOBI: Art of Vengeance
Shared: Metroidvania · Action · Platformer

SteamWorld Dig 2
Shared: Metroidvania · Adventure · Action