Games like Maskonauts: Chat'Attack
Games like Maskonauts: Chat'Attack include Bit Blaster XL, Nova Drift, Planes, Bullets and Vodka, Super Bit Blaster XL, and LUFTRAUSERS. We matched them by the tags players give Maskonauts: Chat'Attack on Steam (Bullet Hell, Shoot 'Em Up, Collectathon, Word Game, and Procedural Generation): closest matches first, and among equally close ones the better-known games.
Bit Blaster XL
Shared: Bullet Hell · Shoot 'Em Up · Shooter
Nova Drift
Shared: Bullet Hell · Shoot 'Em Up · Arcade
Planes, Bullets and Vodka
Shared: Shoot 'Em Up · Bullet Hell · Shooter
Super Bit Blaster XL
Shared: Bullet Hell · Shoot 'Em Up · PvP
LUFTRAUSERS
Shared: Bullet Hell · Shoot 'Em Up · Arcade
Vampire Survivors
Shared: Bullet Hell · 2D · Arcade
BALL x PIT
Shared: Bullet Hell · Shoot 'Em Up · Arcade
ZeroRanger
Shared: Shoot 'Em Up · Bullet Hell · Arcade
Ikaruga
Shared: Bullet Hell · Shoot 'Em Up · Arcade
Revolution Ace
Shared: Shoot 'Em Up · Bullet Hell · Shooter
Counter-Strike 2
Shared: Shooter · PvP · Team-Based
DoDonPachi Resurrection
Shared: Shoot 'Em Up · Bullet Hell · Shooter
Touhou Koumakyou: New Classic - the Embodiment of Scarlet Devil
Shared: Bullet Hell · Shoot 'Em Up · 2D
Neptunia Shooter
Shared: Bullet Hell · Shoot 'Em Up · Cute
Tom Clancy's Rainbow Six Siege
Shared: PvP · Shooter · Team-Based
Mirage Feathers
Shared: Bullet Hell · Shoot 'Em Up · Cute
Star Saviors
Shared: Bullet Hell · Shoot 'Em Up · Arcade
Touhou Kouryudou ~ Unconnected Marketeers.
Shared: Bullet Hell · Shoot 'Em Up · Shooter
Beat Hazard
Shared: Bullet Hell · Shoot 'Em Up · 2D
Touhou Tenkuushou ~ Hidden Star in Four Seasons.
Shared: Bullet Hell · Shoot 'Em Up · Arcade
Warhammer 40,000: Shootas, Blood & Teef
Shared: PvP · Shoot 'Em Up · Bullet Hell
Mushihimesama
Shared: Bullet Hell · Shoot 'Em Up · Arcade
Utopia Must Fall
Shared: Bullet Hell · Arcade · Shoot 'Em Up
Touhou Kinjoukyou ～ Fossilized Wonders.
Shared: Bullet Hell · Shoot 'Em Up · Shooter