Games like Invaliens
Games like Invaliens include Bit Blaster XL, Planes, Bullets and Vodka, LUFTRAUSERS, Nova Drift, and Vampire Survivors. We matched them by the tags players give Invaliens on Steam (Casual, Shoot 'Em Up, Action, Bullet Hell, and Shooter): closest matches first, and among equally close ones the better-known games.
Bit Blaster XL
Shared: Shoot 'Em Up · Bullet Hell · Shooter
Planes, Bullets and Vodka
Shared: Casual · Shoot 'Em Up · Action
LUFTRAUSERS
Shared: Bullet Hell · Action · Arcade
Nova Drift
Shared: Shoot 'Em Up · Bullet Hell · Arcade
Vampire Survivors
Shared: Bullet Hell · Casual · 2D
Cyberhunt
Shared: Casual · Action · Shoot 'Em Up
Star Saviors
Shared: Shoot 'Em Up · Action · Bullet Hell
Ikaruga
Shared: Shoot 'Em Up · Bullet Hell · Action
ZeroRanger
Shared: Shoot 'Em Up · Bullet Hell · Action
Beat Hazard
Shared: Shoot 'Em Up · Bullet Hell · Action
BALL x PIT
Shared: Action · Bullet Hell · Arcade
Revolution Ace
Shared: Shoot 'Em Up · Action · Bullet Hell
Geometry Wars: Retro Evolved
Shared: Casual · Arcade · Bullet Hell
Jets'n'Guns Gold
Shared: Shoot 'Em Up · Action · Bullet Hell
DRAINUS
Shared: Shoot 'Em Up · Action · Shooter
Super Bit Blaster XL
Shared: Shoot 'Em Up · Bullet Hell · Casual
Jet Lancer
Shared: Action · Shoot 'Em Up · Flight
Commando Collection
Shared: Action · Shooter · Bullet Hell
Chicken Invaders 5
Shared: Casual · Action · Shoot 'Em Up
DoDonPachi Resurrection
Shared: Shoot 'Em Up · Bullet Hell · Shooter
Distant Space
Shared: Shoot 'Em Up · Casual · Arcade
Starblast
Shared: Action · Casual · Shoot 'Em Up
Sky Force Reloaded
Shared: Shoot 'Em Up · Bullet Hell · Arcade
Touhou Kinjoukyou ～ Fossilized Wonders.
Shared: Shoot 'Em Up · Bullet Hell · Action