Games like Hyperspace Invaders II: Pixel Edition
Games like Hyperspace Invaders II: Pixel Edition include LUFTRAUSERS, ZeroRanger, Beat Hazard, Bit Blaster XL, and Vampire Survivors. We matched them by the tags players give Hyperspace Invaders II: Pixel Edition on Steam (Action, Indie, Bullet Hell, Shoot 'Em Up, and Arcade): closest matches first, and among equally close ones the better-known games.

LUFTRAUSERS
Shared: Indie · Bullet Hell · Action

ZeroRanger
Shared: Indie · Shoot 'Em Up · Bullet Hell

Beat Hazard
Shared: Bullet Hell · Shoot 'Em Up · Rhythm

Bit Blaster XL
Shared: Bullet Hell · Shoot 'Em Up · Action

Vampire Survivors
Shared: Bullet Hell · Indie · Action

Ikaruga
Shared: Bullet Hell · Shoot 'Em Up · Action

Star Saviors
Shared: Action · Bullet Hell · Shoot 'Em Up

Just Shapes & Beats
Shared: Bullet Hell · Great Soundtrack · Rhythm

BALL x PIT
Shared: Action · Bullet Hell · Arcade

Exit the Gungeon
Shared: Indie · Action · Arcade

BLUE REVOLVER
Shared: Indie · Bullet Hell · Action

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

Hotline Miami
Shared: Action · Indie · Great Soundtrack

Revolution Ace
Shared: Action · Indie · Shoot 'Em Up

Jet Lancer
Shared: Action · Indie · Shoot 'Em Up

Savant - Ascent
Shared: Action · Indie · Great Soundtrack

Planes, Bullets and Vodka
Shared: Action · Shoot 'Em Up · Bullet Hell

Touhou Kouryudou ~ Unconnected Marketeers.
Shared: Action · Bullet Hell · Shoot 'Em Up

UBERMOSH
Shared: Action · Indie · Great Soundtrack

Touhou Koumakyou: New Classic - the Embodiment of Scarlet Devil
Shared: Bullet Hell · Shoot 'Em Up · Action

Touhou Kinjoukyou ~ Fossilized Wonders.
Shared: Bullet Hell · Action · Shoot 'Em Up

Touhou Fuujinroku ~ Mountain of Faith.
Shared: Action · Indie · Bullet Hell

DRAINUS
Shared: Action · Indie · Shoot 'Em Up

Touhou Tenkuushou ~ Hidden Star in Four Seasons.
Shared: Bullet Hell · Great Soundtrack · Shoot 'Em Up