Games like Space Survivors
Games like Space Survivors include Vampire Survivors, Halls of Torment, Death Must Die, BALL x PIT, and Megabonk. We matched them by the tags players give Space Survivors on Steam (Action Roguelike, Bullet Hell, Roguelite, 2D, and Space): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Action Roguelike · Bullet Hell · Roguelite

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

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

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

Megabonk
Shared: Action Roguelike · Roguelite · Bullet Hell

Nova Drift
Shared: Bullet Hell · Roguelite · Action Roguelike

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

Skul: The Hero Slayer
Shared: Action Roguelike · Action · 2D

Nuclear Throne
Shared: Action Roguelike · Bullet Hell · Pixel Graphics

Realm of the Mad God Exalt
Shared: Bullet Hell · Action Roguelike · Pixel Graphics

Boneraiser Minions
Shared: Action Roguelike · Bullet Hell · Roguelite

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

Rocket Rats
Shared: Action Roguelike · Bullet Hell · Roguelite

Soulstone Survivors
Shared: Action Roguelike · Roguelite · Bullet Hell

Hero Siege
Shared: Action Roguelike · Pixel Graphics · Action RPG

Brotato
Shared: Bullet Hell · Action Roguelike · Roguelite

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

Dead Cells
Shared: Action Roguelike · 2D · Roguelite

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

Dungreed
Shared: Action Roguelike · Roguelite · Pixel Graphics

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

Hades
Shared: Action Roguelike · Roguelite · Action

The Binding of Isaac: Rebirth
Shared: Action Roguelike · Pixel Graphics · Roguelike

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