Games like Hardcore Soldier
Games like Hardcore Soldier include Bit Blaster XL, Broforce, ZeroRanger, SANABI, and Huntdown. We matched them by the tags players give Hardcore Soldier on Steam (Bullet Hell, Perma Death, Shoot 'Em Up, Platformer, and Shooter): closest matches first, and among equally close ones the better-known games.

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

Broforce
Shared: Action · Platformer · Pixel Graphics

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

SANABI
Shared: Action · Pixel Graphics · Platformer

Huntdown
Shared: Shooter · Shoot 'Em Up · Pixel Graphics

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

Commando Collection
Shared: Bullet Hell · Shooter · Action

Battlefield™ 2042
Shared: Shooter · Action · Military

Zombotron
Shared: Action · Shooter · Platformer

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

DRAINUS
Shared: Shoot 'Em Up · Action · Shooter

Out There Somewhere
Shared: Platformer · Pixel Graphics · Action

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

Shovel Knight: Treasure Trove
Shared: Platformer · Pixel Graphics · Action

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

Revolution Ace
Shared: Shoot 'Em Up · Bullet Hell · Action

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

Intrusion 2
Shared: Platformer · Action · Shooter

BlazBlue Entropy Effect
Shared: Platformer · Action · Action-Adventure

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

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

Rabi-Ribi
Shared: Bullet Hell · Pixel Graphics · Action-Adventure

Counter-Strike 2
Shared: Shooter · Action · Military

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

