Games like BULLETHELL
Games like BULLETHELL include Ghostrunner, SANABI, Hollow Knight: Silksong, Katana ZERO, and Enter the Gungeon. We matched them by the tags players give BULLETHELL on Steam (Difficult, Combat, Singleplayer, Cyberpunk, and Post-apocalyptic): closest matches first, and among equally close ones the better-known games.
Ghostrunner
Shared: Cyberpunk · Difficult · Singleplayer
SANABI
Shared: Cyberpunk · Singleplayer · Action
Hollow Knight: Silksong
Shared: Difficult · Singleplayer · 2D
Katana ZERO
Shared: Cyberpunk · Action · 2D
Enter the Gungeon
Shared: Difficult · Bullet Hell · Twin Stick Shooter
Geometry Dash
Shared: Difficult · 2D · Singleplayer
Dome Keeper
Shared: Singleplayer · Post-apocalyptic · Combat
Hollow Knight
Shared: Difficult · Singleplayer · 2D
Super Hexagon
Shared: Difficult · Singleplayer · Indie
Skul: The Hero Slayer
Shared: Singleplayer · 2D · Action
The Binding of Isaac: Rebirth
Shared: Difficult · Singleplayer · Indie
Celeste
Shared: Difficult · Singleplayer · 2D
Super Meat Boy
Shared: Difficult · Singleplayer · 2D
A Dance of Fire and Ice
Shared: Difficult · Singleplayer · 2D
RUINER
Shared: Cyberpunk · Difficult · Action
Baba Is You
Shared: Difficult · Singleplayer · Indie
Nuclear Throne
Shared: Difficult · Indie · Post-apocalyptic
Cuphead
Shared: Difficult · 2D · Indie
Rain World
Shared: Difficult · 2D · Post-apocalyptic
UBERMOSH
Shared: Cyberpunk · Action · Indie
Vampire Survivors
Shared: Singleplayer · 2D · Bullet Hell
SUPERHOT
Shared: Singleplayer · Action · Difficult
ARMORED CORE™ VI FIRES OF RUBICON™
Shared: Combat · Action · Singleplayer
Cyberpunk 2077
Shared: Cyberpunk · Singleplayer · Futuristic