Games like Plasma Attack
Games like Plasma Attack include Cyberhunt, 20 Minutes Till Dawn, Superflight, Celeste, and Downwell. We matched them by the tags players give Plasma Attack on Steam (Flight, Precision Platformer, Top-Down Shooter, Shoot 'Em Up, and Gun Customization): closest matches first, and among equally close ones the better-known games.

Cyberhunt
Shared: Action · Shoot 'Em Up · Casual

20 Minutes Till Dawn
Shared: Shoot 'Em Up · Top-Down Shooter · Pixel Graphics

Superflight
Shared: Flight · Casual · Action

Celeste
Shared: Precision Platformer · Pixel Graphics · Indie

Downwell
Shared: Precision Platformer · Pixel Graphics · Action

STAR WARS™: Squadrons
Shared: Flight · Space · Action

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

State of Anarchy
Shared: Shoot 'Em Up · Top-Down Shooter · Action

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

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

Jet Lancer
Shared: Flight · Action · Shoot 'Em Up

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

Trailmakers
Shared: Action · Flight · Space

Super Meat Boy
Shared: Precision Platformer · Pixel Graphics · Indie

Project Wingman
Shared: Flight · Action · Indie

War Thunder
Shared: Flight · Action · Simulation

Kill The Crows
Shared: Action · Top-Down Shooter · Score Attack

Bit Blaster XL
Shared: Shoot 'Em Up · Action · Casual

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

Polygoneer
Shared: Shoot 'Em Up · Action · Casual

SAMOLIOTIK
Shared: Action · Casual · Shoot 'Em Up

Jump King
Shared: Precision Platformer · Action · Pixel Graphics

Hotline Miami
Shared: Action · Pixel Graphics · Indie

House of the Dying Sun
Shared: Action · Flight · Space