Games like Anomalogenos
Games like Anomalogenos include Vampire Survivors, Death Must Die, BALL x PIT, Halls of Torment, and Nuclear Throne. We matched them by the tags players give Anomalogenos on Steam (Action, RPG, Bullet Hell, Top-Down Shooter, and Deckbuilding): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Bullet Hell · Pixel Graphics · Roguelite

Death Must Die
Shared: Bullet Hell · RPG · Action

BALL x PIT
Shared: Action · Bullet Hell · Roguelite

Halls of Torment
Shared: Bullet Hell · Action · Roguelite

Nuclear Throne
Shared: Action · Bullet Hell · Pixel Graphics

Escape From Duckov
Shared: Action · Top-Down Shooter · Shooter

UnderMine
Shared: RPG · Action · Pixel Graphics

Enter the Gungeon
Shared: Bullet Hell · Pixel Graphics · Action

BioShock Infinite
Shared: Action · Shooter · RPG

The Ascent
Shared: RPG · Top-Down Shooter · Action

20 Minutes Till Dawn
Shared: Bullet Hell · Top-Down Shooter · Roguelite

Hero Siege
Shared: RPG · Pixel Graphics · Action

Magicraft
Shared: Bullet Hell · RPG · Roguelite

Cultivation Story: Reincarnation
Shared: RPG · Action · Bullet Hell

Dungeon Munchies
Shared: Action · RPG · Pixel Graphics

Blazing Beaks
Shared: Action · Top-Down Shooter · Pixel Graphics

Tiny Rogues
Shared: Bullet Hell · Top-Down Shooter · Roguelite

Slime 3K: Rise Against Despot
Shared: Bullet Hell · Deckbuilding · Top-Down Shooter

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

Deep Rock Galactic: Survivor
Shared: Bullet Hell · Top-Down Shooter · Roguelite

Streets of Rogue
Shared: RPG · Action · Roguelite

Rocket Rats
Shared: Bullet Hell · Pixel Graphics · Action

Relic Hunters Zero: Remix
Shared: Action · Top-Down Shooter · Bullet Hell

Touhou Blooming Chaos 2
Shared: Action · RPG · Bullet Hell

