Games like Defiance Survivors
Games like Defiance Survivors include Vampire Survivors, Megabonk, Halls of Torment, Hades, and Death Must Die. We matched them by the tags players give Defiance Survivors on Steam (Action Roguelike, RPG, Indie, Bullet Hell, and Casual): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Action Roguelike · Bullet Hell · Indie

Megabonk
Shared: Action Roguelike · Indie · Bullet Hell

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

Hades
Shared: Action Roguelike · Indie · Roguelite

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

Soulstone Survivors
Shared: Action Roguelike · Bullet Hell · Roguelite

Hades II
Shared: Action Roguelike · Action · Roguelite

Brotato
Shared: Action Roguelike · Bullet Hell · Roguelike

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

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

Hero Siege
Shared: Action Roguelike · RPG · Action RPG

Magicraft
Shared: Action Roguelike · Bullet Hell · RPG

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

God Of Weapons
Shared: Action Roguelike · RPG · Bullet Hell

Yet Another Zombie Survivors
Shared: Action Roguelike · Indie · Roguelite

Heroes of Hammerwatch II
Shared: Action Roguelike · RPG · Action

The Binding of Isaac
Shared: Action Roguelike · Indie · Roguelike

Sephiria
Shared: Action Roguelike · Roguelite · RPG

Nuclear Throne
Shared: Action Roguelike · Indie · Bullet Hell

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

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

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

Rogue Legacy
Shared: Action Roguelike · Indie · Action

Pass the Fear
Shared: Action Roguelike · Bullet Hell · Roguelite