Games like Super Intergalactic Gang
Games like Super Intergalactic Gang include Vampire Survivors, Broforce, Bit Blaster XL, Planes, Bullets and Vodka, and BALL x PIT. We matched them by the tags players give Super Intergalactic Gang on Steam (Shoot 'Em Up, Action, Casual, Roguelike, and Shooter): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Bullet Hell · Roguelike · Pixel Graphics

Broforce
Shared: Action · Pixel Graphics · 2D

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

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

BALL x PIT
Shared: Action · Shoot 'Em Up · Roguelike

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

Huntdown
Shared: Action · Shoot 'Em Up · Shooter

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

Rocket Rats
Shared: Casual · Bullet Hell · Action

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

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

Skul: The Hero Slayer
Shared: Action · Roguelike · Pixel Graphics

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

Beat Hazard
Shared: Shoot 'Em Up · Bullet Hell · Action

Nuclear Throne
Shared: Roguelike · Action · Pixel Graphics

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

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

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

DRAINUS
Shared: Shoot 'Em Up · Action · Shooter

ShellShock Live
Shared: Action · Casual · Shooter

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

Jets'n'Guns 2
Shared: Action · Shoot 'Em Up · Side Scroller

METAL SLUG X
Shared: Action · Shoot 'Em Up · 2D

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