Games like Starship Scarwolf
Games like Starship Scarwolf include Bit Blaster XL, DoDonPachi Resurrection, Nova Drift, Sky Force Reloaded, and BALL x PIT. We matched them by the tags players give Starship Scarwolf on Steam (Shoot 'Em Up, Bullet Hell, Top-Down Shooter, Shooter, and Character Customization): closest matches first, and among equally close ones the better-known games.

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

DoDonPachi Resurrection
Shared: Shoot 'Em Up · Top-Down Shooter · Bullet Hell

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

Sky Force Reloaded
Shared: Shoot 'Em Up · Bullet Hell · Top-Down Shooter

BALL x PIT
Shared: Bullet Hell · Shoot 'Em Up · Top-Down Shooter

Star Saviors
Shared: Shoot 'Em Up · Bullet Hell · 2D

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

ZeroRanger
Shared: Shoot 'Em Up · Bullet Hell · 2D

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

Pathogenic
Shared: Bullet Hell · Top-Down Shooter · Shooter

20 Minutes Till Dawn
Shared: Bullet Hell · Shoot 'Em Up · Top-Down Shooter

STAR WARS™ Battlefront™ II
Shared: Shooter · Sci-fi · Space

LUFTRAUSERS
Shared: Bullet Hell · Shoot 'Em Up · 2D

Chippy
Shared: Bullet Hell · Shoot 'Em Up · Top-Down Shooter

Revolution Ace
Shared: Shoot 'Em Up · Bullet Hell · Shooter

DRAINUS
Shared: Shoot 'Em Up · Shooter · Bullet Hell

Beat Hazard
Shared: Bullet Hell · Shoot 'Em Up · 2D

Touhou Koumakyou: New Classic - the Embodiment of Scarlet Devil
Shared: Shoot 'Em Up · Bullet Hell · 2D

Vampire Survivors
Shared: Bullet Hell · 2D · Indie

ESCHATOS
Shared: Shoot 'Em Up · Bullet Hell · Top-Down Shooter

Crimzon Clover World EXplosion
Shared: Shoot 'Em Up · Bullet Hell · Shooter

Cyberhunt
Shared: Shoot 'Em Up · 2D · Action

Super Bit Blaster XL
Shared: Shoot 'Em Up · Bullet Hell · 2D

Time Wasters
Shared: Bullet Hell · Shoot 'Em Up · 2D