Games like Spacefighter Rukia 2
Games like Spacefighter Rukia 2 include Warhammer 40,000: Space Marine 2, BALL x PIT, LUFTRAUSERS, Ikaruga, and Nova Drift. We matched them by the tags players give Spacefighter Rukia 2 on Steam (Shoot 'Em Up, Bullet Hell, Action, Arcade, and 3D): closest matches first, and among equally close ones the better-known games.

Warhammer 40,000: Space Marine 2
Shared: Action · Third Person · Sci-fi

BALL x PIT
Shared: Action · Bullet Hell · Arcade

LUFTRAUSERS
Shared: Bullet Hell · Action · Arcade

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

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

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

Megabonk
Shared: Bullet Hell · Action · Arcade

Vampire Survivors
Shared: Bullet Hell · Arcade · Action

R-Type Final 2
Shared: Shoot 'Em Up · Action · Arcade

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

Sky Force Reloaded
Shared: Shoot 'Em Up · Bullet Hell · Arcade

ARMORED CORE™ VI FIRES OF RUBICON™
Shared: Action · Third Person · 3D

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

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

PRAGMATA
Shared: Action · Sci-fi · Futuristic

Project Wingman
Shared: Action · Arcade · Flight

Predecessor
Shared: Action · Third Person · Sci-fi

ACE COMBAT™ 7: SKIES UNKNOWN
Shared: Arcade · 3D · Flight

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

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

Warframe
Shared: Action · Third Person · RPG

STAR WARS Jedi: Survivor™
Shared: Action · Third Person · Singleplayer

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

Vanquish
Shared: Action · Sci-fi · Third Person