Games like Aliens&Asteroids
Games like Aliens&Asteroids include Vampire Survivors, One Finger Death Punch, Timberman, Megabonk, and Cyberhunt. We matched them by the tags players give Aliens&Asteroids on Steam (Casual, Indie, Space, Action, and Singleplayer): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Bullet Hell · Indie · Casual

One Finger Death Punch
Shared: Action · Indie · Fast-Paced

Timberman
Shared: Casual · Indie · Action

Megabonk
Shared: Indie · Bullet Hell · Action

Cyberhunt
Shared: Indie · Casual · Action

Defy Gravity Extended
Shared: Indie · Space · Singleplayer

One Finger Death Punch 2
Shared: Indie · Casual · Action

Superflight
Shared: Indie · Casual · Singleplayer

Zup! S
Shared: Casual · Indie · Singleplayer

Spin Rhythm XD
Shared: Casual · Indie · Action

Caster
Shared: Indie · Action · Casual

Planes, Bullets and Vodka
Shared: Casual · Action · Bullet Hell

Trailmakers
Shared: Space · Action · Singleplayer

Mountain
Shared: Indie · Casual · Singleplayer

SUPERHOT
Shared: Action · Indie · Singleplayer

LUFTRAUSERS
Shared: Indie · Action · Bullet Hell

Deliver Us The Moon
Shared: Indie · Space · Action

Hotline Miami
Shared: Indie · Action · Fast-Paced

Gang Beasts
Shared: Action · Casual · Indie

Zup!
Shared: Casual · Indie · Fast-Paced

Waveform
Shared: Indie · Casual · Singleplayer

Solar 2
Shared: Indie · Casual · Space

Zup! 2
Shared: Casual · Indie · Fast-Paced

Gensokyo Night Festival
Shared: Indie · Action · Casual