Games like BlastZone 2
Games like BlastZone 2 include Sky Force Reloaded, Brotato, Revolution Ace, LUFTRAUSERS, and 20 Minutes Till Dawn. We matched them by the tags players give BlastZone 2 on Steam (Shoot 'Em Up, Bullet Hell, Fast-Paced, Online Co-Op, and Local Co-Op): closest matches first, and among equally close ones the better-known games.

Sky Force Reloaded
Shared: Shoot 'Em Up · Bullet Hell · Local Co-Op

Brotato
Shared: Bullet Hell · Local Co-Op · Singleplayer

Revolution Ace
Shared: Shoot 'Em Up · Bullet Hell · Local Co-Op

LUFTRAUSERS
Shared: Bullet Hell · Shoot 'Em Up · Fast-Paced

20 Minutes Till Dawn
Shared: Bullet Hell · Shoot 'Em Up · Survival

HELLDIVERS™ 2
Shared: Online Co-Op · PvE · Shooter

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

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

Vampire Survivors
Shared: Bullet Hell · Singleplayer · Local Co-Op

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

PUBG: BATTLEGROUNDS
Shared: Survival · Online Co-Op · Shooter

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

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

CounterAttack: Uprising
Shared: Shoot 'Em Up · Bullet Hell · Online Co-Op

Left 4 Dead 2
Shared: Online Co-Op · Survival · Shooter

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

METAL SLUG 3
Shared: Local Co-Op · Online Co-Op · Shoot 'Em Up

The Bug Butcher
Shared: Shoot 'Em Up · Local Co-Op · Bullet Hell

Roboquest
Shared: Online Co-Op · Fast-Paced · Bullet Hell

BALL x PIT
Shared: Bullet Hell · Shoot 'Em Up · Arcade

Megabonk
Shared: Bullet Hell · Survival · Singleplayer

Nex Machina
Shared: Bullet Hell · Shoot 'Em Up · Local Co-Op

DRAINUS
Shared: Shoot 'Em Up · Bullet Hell · Singleplayer

Steredenn: Binary Stars
Shared: Shoot 'Em Up · Fast-Paced · Bullet Hell