Games like The X-Type
Games like The X-Type include Huntdown, Bit Blaster XL, SANABI, Alex Jones: NWO Wars, and METAL SLUG. We matched them by the tags players give The X-Type on Steam (Side Scroller, Action, Bullet Hell, Shoot 'Em Up, and 2D Platformer): closest matches first, and among equally close ones the better-known games.

Huntdown
Shared: Side Scroller · Action · Shooter

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

SANABI
Shared: Action · 2D Platformer · Story Rich

Alex Jones: NWO Wars
Shared: Action · Side Scroller · Shoot 'Em Up

METAL SLUG
Shared: Action · Side Scroller · Arcade

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

BALL x PIT
Shared: Action · Bullet Hell · Arcade

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

Contra: Operation Galuga
Shared: Action · Side Scroller · Shooter

Broforce
Shared: Action · 2D · Side Scroller

Exit the Gungeon
Shared: Action · Bullet Hell · Arcade

DRAINUS
Shared: Action · Shoot 'Em Up · Shooter

LUFTRAUSERS
Shared: Bullet Hell · Action · Arcade

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

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

METAL SLUG 3
Shared: Action · Side Scroller · Arcade

METAL SLUG X
Shared: Action · Arcade · Shoot 'Em Up

Star Saviors
Shared: Action · Bullet Hell · Shoot 'Em Up

Terminator 2D: NO FATE
Shared: Side Scroller · Action · 2D Platformer

Vampire Survivors
Shared: Bullet Hell · 2D · Pixel Graphics

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

DoDonPachi Resurrection
Shared: Bullet Hell · Shoot 'Em Up · Action

DEVIL BLADE REBOOT
Shared: Action · Shoot 'Em Up · Shooter

Warhammer 40,000: Shootas, Blood & Teef
Shared: Side Scroller · Shoot 'Em Up · 2D Platformer

