Games like Maku
Games like Maku include Vampire Survivors, BALL x PIT, Megabonk, 20 Minutes Till Dawn, and Brotato. We matched them by the tags players give Maku on Steam (Bullet Hell, Survival, Survival Horror, Action, and Anime): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Bullet Hell · Action Roguelike · Roguelite

BALL x PIT
Shared: Bullet Hell · Action · Arcade

Megabonk
Shared: Bullet Hell · Action Roguelike · Survival

20 Minutes Till Dawn
Shared: Bullet Hell · Survival · Action Roguelike

Brotato
Shared: Bullet Hell · Survival · Action Roguelike

Enter the Gungeon
Shared: Bullet Hell · Action Roguelike · Roguelike

Nuclear Throne
Shared: Bullet Hell · Action Roguelike · Action

Halls of Torment
Shared: Bullet Hell · Action Roguelike · Action

Nova Drift
Shared: Bullet Hell · Action Roguelike · Arcade

Death Must Die
Shared: Bullet Hell · Action Roguelike · Action

FatalZone
Shared: Bullet Hell · Survival · Action Roguelike

Yet Another Zombie Survivors
Shared: Top-Down Shooter · Action Roguelike · Arcade

Tiny Rogues
Shared: Bullet Hell · Action Roguelike · Top-Down Shooter

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

Skul: The Hero Slayer
Shared: Action · Action Roguelike · Roguelike

I Am Legion: Stand Survivors
Shared: Bullet Hell · Action Roguelike · Action

Rocket Rats
Shared: Bullet Hell · Action Roguelike · Action

Star of Providence
Shared: Bullet Hell · Action Roguelike · Action

Atomicrops
Shared: Bullet Hell · Action · Action Roguelike

Arms of God
Shared: Bullet Hell · Top-Down Shooter · Action Roguelike

Tower of Babel: Survivors of Chaos
Shared: Bullet Hell · Action Roguelike · Action

Blazing Beaks
Shared: Action Roguelike · Action · Top-Down Shooter

Noobs Want to Live
Shared: Bullet Hell · Action · Action Roguelike

The Spell Brigade
Shared: Bullet Hell · Action Roguelike · Action