Games like Blue Guy Must Die
Games like Blue Guy Must Die include Megabonk, Deep Rock Galactic: Survivor, Vampire Survivors, Nuclear Throne, and Death Must Die. We matched them by the tags players give Blue Guy Must Die on Steam (Action, Bullet Heaven, Action Roguelike, Roguelite, and Top-Down Shooter): closest matches first, and among equally close ones the better-known games.

Megabonk
Shared: Bullet Heaven · Action Roguelike · Roguelite

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

Vampire Survivors
Shared: Action Roguelike · Roguelite · Pixel Graphics

Nuclear Throne
Shared: Action Roguelike · Action · Roguelite

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

20 Minutes Till Dawn
Shared: Action Roguelike · Roguelite · Top-Down Shooter

BALL x PIT
Shared: Action · Roguelite · Action Roguelike

Hades
Shared: Action Roguelike · Roguelite · Action

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

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

Brotato
Shared: Action Roguelike · Bullet Heaven · Roguelite

Halls of Torment
Shared: Action Roguelike · Roguelite · Action

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

Soulstone Survivors
Shared: Bullet Heaven · Action Roguelike · Roguelite

SYNTHETIK: Legion Rising
Shared: Action · Roguelite · Top-Down Shooter

Nova Drift
Shared: Roguelite · Action Roguelike · Bullet Heaven

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

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

The Last Stand: Aftermath
Shared: Roguelite · Top-Down Shooter · Action Roguelike

Risk of Rain 2
Shared: Action Roguelike · Action · Roguelite

SNKRX
Shared: Action Roguelike · Roguelite · Top-Down Shooter

Boneraiser Minions
Shared: Action Roguelike · Roguelite · Bullet Heaven

UnderMine
Shared: Action Roguelike · Roguelite · Action

Time Wasters
Shared: Bullet Heaven · Action Roguelike · Roguelite