Games like Deep Enigma
Games like Deep Enigma include Hollow Knight, Hollow Knight: Silksong, ANIMAL WELL, Ori and the Will of the Wisps, and SANABI. We matched them by the tags players give Deep Enigma on Steam (Action, Adventure, Indie, Metroidvania, and Pixel Graphics): closest matches first, and among equally close ones the better-known games.

Hollow Knight
Shared: Metroidvania · Indie · Platformer

Hollow Knight: Silksong
Shared: Metroidvania · Indie · Singleplayer

ANIMAL WELL
Shared: Metroidvania · Exploration · Pixel Graphics

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

SANABI
Shared: Action · Pixel Graphics · Adventure

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

Axiom Verge
Shared: Indie · Metroidvania · Action

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

Gato Roboto
Shared: Action · Indie · Metroidvania

Dead Cells
Shared: Adventure · Metroidvania · Pixel Graphics

Owlboy
Shared: Adventure · Indie · Pixel Graphics

CARRION
Shared: Action · Metroidvania · Pixel Graphics

Blasphemous
Shared: Metroidvania · Pixel Graphics · Indie

Rain World
Shared: Indie · Exploration · Pixel Graphics

Celeste
Shared: Indie · Pixel Graphics · 2D Platformer

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

UnEpic
Shared: Indie · Action · Metroidvania

Reventure
Shared: Adventure · Indie · Pixel Graphics

Iconoclasts
Shared: Indie · Action · Metroidvania

Katana ZERO
Shared: Action · Pixel Graphics · Indie

VVVVVV
Shared: Pixel Graphics · Indie · Platformer

Rogue Legacy
Shared: Indie · Action · Platformer

Hyper Light Drifter
Shared: Pixel Graphics · Indie · Adventure

Rogue Legacy 2
Shared: Action · Metroidvania · Indie