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

Hollow Knight
Shared: Metroidvania · Platformer · Adventure

Hollow Knight: Silksong
Shared: Metroidvania · Indie · Platformer

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

SANABI
Shared: Adventure · 2D Platformer · Singleplayer

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

The Witcher 3: Wild Hunt — Remastered
Shared: Open World · Adventure · Singleplayer

Owlboy
Shared: Adventure · Metroidvania · Platformer

STAR WARS Jedi: Survivor™
Shared: Adventure · Open World · Singleplayer

The Messenger
Shared: Metroidvania · Platformer · 2D Platformer

Dead Cells
Shared: Adventure · Metroidvania · Platformer

Celeste
Shared: 2D Platformer · Platformer · Indie

Assassin's Creed® Odyssey
Shared: Open World · Action-Adventure · Singleplayer

Nine Sols
Shared: Metroidvania · Platformer · Adventure

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

STAR WARS Jedi: Fallen Order™
Shared: Open World · Action-Adventure · Platformer

Marvel’s Spider-Man Remastered
Shared: Open World · Adventure · Singleplayer

Reventure
Shared: Adventure · Multiple Endings · Indie

Axiom Verge
Shared: Metroidvania · Platformer · Adventure

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

Gato Roboto
Shared: Metroidvania · Adventure · Indie

Rise of the Tomb Raider™
Shared: Adventure · Open World · Singleplayer

Rain World
Shared: Platformer · Open World · Adventure

Constance
Shared: Metroidvania · Platformer · Adventure

Red Dead Redemption 2
Shared: Open World · Adventure · Singleplayer