Games like 9 Lives to Defend
Games like 9 Lives to Defend include Brotato, Megabonk, Soulstone Survivors, Nova Drift, and Deep Rock Galactic: Survivor. We matched them by the tags players give 9 Lives to Defend on Steam (Bullet Heaven, Bullet Hell, Cats, Action Roguelike, and Roguelite): closest matches first, and among equally close ones the better-known games.

Brotato
Shared: Bullet Hell · Bullet Heaven · Action Roguelike

Megabonk
Shared: Bullet Heaven · Action Roguelike · Bullet Hell

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

Nova Drift
Shared: Bullet Hell · Roguelite · Action Roguelike

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

Vampire Survivors
Shared: Bullet Hell · Action Roguelike · Roguelite

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

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

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

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

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

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

Arms of God
Shared: Bullet Heaven · Bullet Hell · Action Roguelike

Time Wasters
Shared: Bullet Heaven · Bullet Hell · Action Roguelike

The Spell Brigade
Shared: Bullet Heaven · Bullet Hell · Roguelite

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

Hades
Shared: Action Roguelike · Roguelite · Roguelike

Vital Shell
Shared: Bullet Heaven · Action Roguelike · Bullet Hell

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

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

R.I.P. - Reincarnation Insurance Program
Shared: Bullet Heaven · Action Roguelike · Bullet Hell

Cursorblade
Shared: Bullet Heaven · Bullet Hell · Action Roguelike

FatalZone
Shared: Bullet Hell · Action Roguelike · Roguelite

NIMRODS
Shared: Bullet Heaven · Action Roguelike · Bullet Hell