Games like 18 Levels of Hells
Games like 18 Levels of Hells include Vampire Survivors, Terraria, Death Must Die, Boneraiser Minions, and 20 Minutes Till Dawn. We matched them by the tags players give 18 Levels of Hells on Steam (Rhythm, Online Co-Op, RPG, Casual, and Bullet Hell): closest matches first, and among equally close ones the better-known games.
Vampire Survivors
Shared: Bullet Hell · 2D · Vampires
Terraria
Shared: 2D · Pixel Graphics · Survival
Death Must Die
Shared: Bullet Hell · RPG · Pixel Graphics
Boneraiser Minions
Shared: Bullet Hell · 2D · Pixel Graphics
20 Minutes Till Dawn
Shared: Bullet Hell · Casual · Pixel Graphics
Don't Starve Together
Shared: Online Co-Op · Survival · RPG
Starbound
Shared: Online Co-Op · Pixel Graphics · Survival
Just Shapes & Beats
Shared: Rhythm · Bullet Hell · 2D
Dying Light
Shared: Online Co-Op · Horror · RPG
OMORI
Shared: RPG · Indie · Pixel Graphics
Enter the Gungeon
Shared: Bullet Hell · Pixel Graphics · Indie
DELTARUNE
Shared: RPG · Bullet Hell · Pixel Graphics
Magicite
Shared: RPG · Indie · 2D
Tinkerlands
Shared: Online Co-Op · Pixel Graphics · Indie
Beat Hazard
Shared: Rhythm · Bullet Hell · 2D
Hero Siege
Shared: RPG · Pixel Graphics · Indie
Tales of the Black Forest
Shared: RPG · Pixel Graphics · Indie
Asgard's Fall — Viking Survivors
Shared: Bullet Hell · Casual · 2D
Melvor Idle
Shared: RPG · Casual · Indie
DAVE THE DIVER
Shared: Casual · Pixel Graphics · RPG
Cookie Clicker
Shared: Casual · Indie · Pixel Graphics
Stardew Valley
Shared: RPG · Pixel Graphics · Indie
Touhou Mystia's Izakaya
Shared: Casual · RPG · Pixel Graphics
Undertale
Shared: RPG · Pixel Graphics · Indie