Games like BlassHole
Games like BlassHole include Planes, Bullets and Vodka, Bit Blaster XL, KovaaK's, Project Wingman, and Megabonk. We matched them by the tags players give BlassHole on Steam (Action, Casual, Simulation, Action-Adventure, and Point & Click): closest matches first, and among equally close ones the better-known games.

Planes, Bullets and Vodka
Shared: Action · Casual · Arcade

Bit Blaster XL
Shared: Action · Arcade · Shooter

KovaaK's
Shared: Action · Simulation · Shooter

Project Wingman
Shared: Action · Arcade · Simulation

Megabonk
Shared: Action · Bullet Heaven · Arcade

Nova Drift
Shared: Arcade · Action · Bullet Hell

Retrowave
Shared: Casual · Action · Simulation

Aimlabs
Shared: Action · Simulation · Shooter

LUFTRAUSERS
Shared: Action · Arcade · Bullet Hell

War Thunder
Shared: Action · Simulation · Flight

Arma 3
Shared: Action · Simulation · Shooter

House of the Dying Sun
Shared: Action · Simulation · Space Sim

ACE COMBAT™ 7: SKIES UNKNOWN
Shared: Arcade · Shooter · Action

Squirrel with a Gun
Shared: Action · Simulation · Action-Adventure

RADical ROACH Remastered
Shared: Action · Casual · Simulation

Crab Champions
Shared: Arcade · Looter Shooter · Casual

Cyberhunt
Shared: Action · Casual · Arcade

Oblivity - Find your perfect Sensitivity
Shared: Action · Simulation · Shooter

BALL x PIT
Shared: Action · Arcade · Bullet Hell

Astro Prospector
Shared: Casual · Simulation · Bullet Heaven

Flying Tigers: Shadows Over China
Shared: Action · Simulation · Casual

VLADiK BRUTAL
Shared: Action · Shooter · Casual

Vampire Survivors
Shared: Casual · Action · Bullet Hell

Chicken Invaders 5
Shared: Action · Casual · Arcade