Games like MOBU
Games like MOBU include Brotato, Megabonk, Vampire Survivors, Nova Drift, and Death Must Die. We matched them by the tags players give MOBU on Steam (Action Roguelike, Arena Shooter, Bullet Heaven, Hack and Slash, and Shoot 'Em Up): closest matches first, and among equally close ones the better-known games.

Brotato
Shared: Action Roguelike · Bullet Heaven · Bullet Hell

Megabonk
Shared: Action Roguelike · Bullet Heaven · Roguelite

Vampire Survivors
Shared: Action Roguelike · Bullet Hell · Roguelite

Nova Drift
Shared: Action Roguelike · Shoot 'Em Up · Arena Shooter

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

Soulstone Survivors
Shared: Action Roguelike · Bullet Heaven · Bullet Hell

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

BALL x PIT
Shared: Action Roguelike · Roguelite · Bullet Hell

Hades
Shared: Action Roguelike · Hack and Slash · Roguelite

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

Time Wasters
Shared: Action Roguelike · Bullet Heaven · Arena Shooter

Deep Rock Galactic: Survivor
Shared: Action Roguelike · Bullet Heaven · Bullet Hell

20 Minutes Till Dawn
Shared: Action Roguelike · Bullet Hell · Shoot 'Em Up

Nordic Ashes: Survivors of Ragnarok
Shared: Action Roguelike · Bullet Heaven · Bullet Hell

Hades II
Shared: Action Roguelike · Hack and Slash · Roguelite

Boneraiser Minions
Shared: Action Roguelike · Bullet Hell · Bullet Heaven

Rogue: Genesia
Shared: Action Roguelike · Bullet Heaven · Bullet Hell

Yet Another Zombie Survivors
Shared: Action Roguelike · Bullet Heaven · Roguelite

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

Jotunnslayer: Hordes of Hel
Shared: Action Roguelike · Bullet Heaven · Hack and Slash

Geometry Arena
Shared: Arena Shooter · Bullet Heaven · Hack and Slash

Noobs Are Coming
Shared: Action Roguelike · Arena Shooter · Roguelite

Arms of God
Shared: Action Roguelike · Bullet Heaven · Arena Shooter

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