Games like Demonicute
Games like Demonicute include Katana ZERO, Super Meat Boy, Celeste, SANABI, and SHINOBI: Art of Vengeance. We matched them by the tags players give Demonicute on Steam (Precision Platformer, Action, 2D Platformer, Hack and Slash, and Platformer): closest matches first, and among equally close ones the better-known games.

Katana ZERO
Shared: Action · Platformer · 2D Platformer

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

Celeste
Shared: Precision Platformer · 2D Platformer · Platformer

SANABI
Shared: Action · 2D Platformer · 2D

SHINOBI: Art of Vengeance
Shared: Action · 2D Platformer · Platformer

Super Meat Boy Forever
Shared: Action · Precision Platformer · Platformer

God of War
Shared: Action · Singleplayer · Hack and Slash

VVVVVV
Shared: Precision Platformer · 2D Platformer · Platformer

Geometry Dash
Shared: Precision Platformer · 2D · Platformer

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

Have a Nice Death
Shared: Hack and Slash · Action · 2D

Mark of the Ninja: Remastered
Shared: Action · 2D · Platformer

Hollow Knight
Shared: Platformer · 2D · Singleplayer

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

Ori and the Will of the Wisps
Shared: Platformer · Action · Singleplayer

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

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

Ambidextro
Shared: Precision Platformer · Action · 2D Platformer

Downwell
Shared: Precision Platformer · Platformer · 2D Platformer

Ryse: Son of Rome
Shared: Action · Hack and Slash · Singleplayer

They Bleed Pixels
Shared: Platformer · Precision Platformer · 2D Platformer

BlazBlue Entropy Effect
Shared: Action · 2D · Platformer

LIMBO
Shared: Platformer · 2D · Atmospheric

Devil May Cry 5
Shared: Action · Hack and Slash · Singleplayer