Games like Space Warden
Games like Space Warden include BALL x PIT, Nova Drift, Brotato, Halls of Torment, and Vampire Survivors. We matched them by the tags players give Space Warden on Steam (Action, RPG, Arcade, Roguelike, and Shooter): closest matches first, and among equally close ones the better-known games.

BALL x PIT
Shared: Action · Arcade · Roguelike

Nova Drift
Shared: Arcade · Bullet Hell · Shoot 'Em Up

Brotato
Shared: Roguelike · Bullet Hell · Arena Shooter

Halls of Torment
Shared: Action · Roguelike · Bullet Hell

Vampire Survivors
Shared: Bullet Hell · Roguelike · Action

Sky Force Reloaded
Shared: Arcade · Action · Shoot 'Em Up

BioShock Infinite
Shared: Action · Shooter · RPG

Nuclear Throne
Shared: Roguelike · Action · Bullet Hell

Planes, Bullets and Vodka
Shared: Action · Arcade · Shooter

Deep Rock Galactic: Survivor
Shared: Bullet Hell · Action · Arena Shooter

Bit Blaster XL
Shared: Arcade · Shooter · Action

Megabonk
Shared: Roguelike · Action · Bullet Hell

Hades II
Shared: Action · Roguelike · RPG

Revolution Ace
Shared: Action · Shooter · Arcade

Chippy
Shared: Bullet Hell · Arcade · Arena Shooter

Ikaruga
Shared: Arcade · Action · Bullet Hell

Alien Shooter
Shared: Action · Shooter · RPG

Rogue Legacy 2
Shared: Arcade · Action · RPG

Dome Keeper
Shared: Action · Roguelike · Tower Defense

Soulstone Survivors
Shared: Roguelike · RPG · Bullet Hell

Halo: Spartan Assault
Shared: Action · Shooter · Top-Down Shooter

The Ascent
Shared: RPG · Action · Shooter

Borderlands 2
Shared: Action · Shooter · RPG

Crimzon Clover World EXplosion
Shared: Action · Arcade · Shooter