Games like Blastermancer
Games like Blastermancer include Vampire Survivors, Nova Drift, BALL x PIT, Halls of Torment, and Megabonk. We matched them by the tags players give Blastermancer on Steam (2D Platformer, Bullet Hell, Incremental, Arena Shooter, and Action Roguelike): closest matches first, and among equally close ones the better-known games.
Vampire Survivors
Shared: Bullet Hell · Action Roguelike · Roguelite
Nova Drift
Shared: Bullet Hell · Shoot 'Em Up · Action Roguelike
BALL x PIT
Shared: Bullet Hell · Roguelite · Action Roguelike
Halls of Torment
Shared: Bullet Hell · Action Roguelike · Roguelite
Megabonk
Shared: Action Roguelike · Bullet Hell · Roguelite
Skul: The Hero Slayer
Shared: Action Roguelike · Action · Indie
20 Minutes Till Dawn
Shared: Bullet Hell · Action Roguelike · Shoot 'Em Up
Brotato
Shared: Bullet Hell · Action Roguelike · Arena Shooter
Star of Providence
Shared: Bullet Hell · Action Roguelike · Roguelite
Death Must Die
Shared: Bullet Hell · Action Roguelike · Roguelite
Boneraiser Minions
Shared: Bullet Hell · Action Roguelike · Roguelite
Downwell
Shared: Action Roguelike · 2D Platformer · Indie
Enter the Gungeon
Shared: Bullet Hell · Action Roguelike · Indie
Deep Rock Galactic: Survivor
Shared: Bullet Hell · Action Roguelike · Roguelite
Time Wasters
Shared: Bullet Hell · Action Roguelike · Arena Shooter
I Am Legion: Stand Survivors
Shared: Bullet Hell · Action Roguelike · Shoot 'Em Up
Rogue Legacy
Shared: Action Roguelike · Action · 2D
Dungreed
Shared: Action Roguelike · Roguelite · Action
SNKRX
Shared: Action Roguelike · Arena Shooter · Roguelite
Nuclear Throne
Shared: Action Roguelike · Bullet Hell · Roguelite
20XX
Shared: 2D Platformer · Action Roguelike · Roguelite
Astro Prospector
Shared: Incremental · Bullet Hell · Action Roguelike
Talented
Shared: Action Roguelike · Shoot 'Em Up · Roguelite
The Void Rains Upon Her Heart
Shared: Bullet Hell · Action Roguelike · Shoot 'Em Up