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

Vampire Survivors
Shared: Bullet Hell · Action Roguelike · Roguelite

Megabonk
Shared: Action Roguelike · Bullet Hell · Roguelite

BALL x PIT
Shared: Action · Bullet Hell · Roguelite

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

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

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

Brotato
Shared: Bullet Hell · Action Roguelike · Roguelike

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

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

Nuclear Throne
Shared: Action Roguelike · Bullet Hell · Action

Nova Drift
Shared: Bullet Hell · Action Roguelike · Roguelite

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

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

Atomicrops
Shared: Bullet Hell · Action · Action Roguelike

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

Boneraiser Minions
Shared: Bullet Hell · Action Roguelike · Roguelite

Soulstone Survivors
Shared: Bullet Hell · Action Roguelike · Roguelite

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

Dungreed
Shared: Action Roguelike · Action · Roguelite

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

Hades
Shared: Action Roguelike · Roguelite · Action

Tiny Rogues
Shared: Bullet Hell · Action Roguelike · Roguelite

Dead Cells
Shared: Action Roguelike · Roguelike · Roguelite

Rogue Legacy
Shared: Action Roguelike · Action · Roguelike