Games like Aces of the Luftwaffe
Games like Aces of the Luftwaffe include BALL x PIT, LUFTRAUSERS, Huntdown, Vampire Survivors, and Bit Blaster XL. We matched them by the tags players give Aces of the Luftwaffe on Steam (Action, Shoot 'Em Up, Bullet Hell, World War II, and Pixel Graphics): closest matches first, and among equally close ones the better-known games.

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

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

Huntdown
Shared: Action · Pixel Graphics · Shoot 'Em Up

Vampire Survivors
Shared: Bullet Hell · Pixel Graphics · Action

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

20 Minutes Till Dawn
Shared: Bullet Hell · Shoot 'Em Up · Pixel Graphics

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

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

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

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

Neptunia Shooter
Shared: Action · Bullet Hell · Shoot 'Em Up

Broforce
Shared: Action · Pixel Graphics · Side Scroller

METAL SLUG
Shared: Action · Shoot 'Em Up · Side Scroller

Enter the Gungeon
Shared: Bullet Hell · Pixel Graphics · Action

The Void Rains Upon Her Heart
Shared: Bullet Hell · Shoot 'Em Up · Action

Jets'n'Guns 2
Shared: Action · Shoot 'Em Up · Bullet Hell

Halls of Torment
Shared: Bullet Hell · Pixel Graphics · Action

Blazing Chrome
Shared: Action · Pixel Graphics · Shoot 'Em Up

Death Must Die
Shared: Bullet Hell · Pixel Graphics · Action

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

Super Time Force Ultra
Shared: Bullet Hell · Side Scroller · Shoot 'Em Up

Guns, Gore and Cannoli 2
Shared: Action · Side Scroller · Shoot 'Em Up

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

Rabi-Ribi
Shared: Bullet Hell · Pixel Graphics · Action