Games like Lux Ex - Legacy
Games like Lux Ex - Legacy include Waves, Bit Blaster XL, BALL x PIT, Nova Drift, and Planes, Bullets and Vodka. We matched them by the tags players give Lux Ex - Legacy on Steam (Hero Shooter, Shoot 'Em Up, Bullet Hell, Shooter, and Procedural Generation): closest matches first, and among equally close ones the better-known games.

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

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

BALL x PIT
Shared: Bullet Hell · Shoot 'Em Up · Arcade

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

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

UBERMOSH
Shared: Cyberpunk · Arcade · Bullet Hell

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

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

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

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

Nex Machina
Shared: Bullet Hell · Shoot 'Em Up · Arcade

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

Huntdown
Shared: Shooter · Shoot 'Em Up · Cyberpunk

Star of Providence
Shared: Bullet Hell · Shoot 'Em Up · Shooter

Assault Android Cactus+
Shared: Bullet Hell · Shoot 'Em Up · Shooter

BLUE REVOLVER
Shared: Shoot 'Em Up · Bullet Hell · Arcade

Bot Vice
Shared: Shoot 'Em Up · Bullet Hell · Shooter

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

UBERMOSH:WRAITH
Shared: Arcade · Bullet Hell · Action

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

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

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

Vampire Survivors
Shared: Bullet Hell · Pixel Graphics · Arcade

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