Games like Atomic Heist
Games like Atomic Heist include FTL: Faster Than Light, The Binding of Isaac: Rebirth, The Binding of Isaac, Skul: The Hero Slayer, and Hades. We matched them by the tags players give Atomic Heist on Steam (Action, Indie, RPG, 2D, and Sci-fi): closest matches first, and among equally close ones the better-known games.

FTL: Faster Than Light
Shared: Indie · Sci-fi · Singleplayer

The Binding of Isaac: Rebirth
Shared: Indie · Difficult · Replay Value

The Binding of Isaac
Shared: Indie · Action · Difficult

Skul: The Hero Slayer
Shared: Action · Indie · 2D

Hades
Shared: Indie · Action · Singleplayer

Rogue Legacy 2
Shared: Action · Indie · RPG

Rogue Legacy
Shared: Indie · Action · 2D

Hollow Knight: Silksong
Shared: Indie · Difficult · 2D

Vampire Survivors
Shared: Indie · 2D · Singleplayer

A Dance of Fire and Ice
Shared: Indie · Difficult · 2D

Spelunky
Shared: Indie · 2D · Difficult

Brotato
Shared: Singleplayer · Sci-fi · Roguelike

Dome Keeper
Shared: Action · Singleplayer · Sci-fi

Hollow Knight
Shared: Indie · 2D · Difficult

Geometry Dash
Shared: Difficult · 2D · Singleplayer

Defy Gravity Extended
Shared: Indie · Action · 2D

Space Pirates and Zombies
Shared: Action · Indie · Sci-fi

Cosmoteer: Starship Architect & Commander
Shared: Sci-fi · Indie · 2D

UFO 50
Shared: Indie · Action · 2D

RUINER
Shared: Action · Indie · Top-Down Shooter

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

Mass Effect™ Legendary Edition
Shared: RPG · Sci-fi · Action

ICEY
Shared: Action · Indie · 2D

Zombotron
Shared: Action · Indie · 2D