Games like BattleCubes: Arena
Games like BattleCubes: Arena include Vampire Survivors, Bit Blaster XL, Nova Drift, Planes, Bullets and Vodka, and LUFTRAUSERS. We matched them by the tags players give BattleCubes: Arena on Steam (Action, Arena Shooter, Singleplayer, Indie, and Bullet Hell): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Bullet Hell · Indie · Singleplayer

Bit Blaster XL
Shared: Bullet Hell · Action · Shooter

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

Planes, Bullets and Vodka
Shared: Action · Bullet Hell · Singleplayer

LUFTRAUSERS
Shared: Action · Indie · Bullet Hell

STAR WARS™ Battlefront™ II
Shared: Singleplayer · Shooter · Action

Megabonk
Shared: Indie · Action · Bullet Hell

KovaaK's
Shared: Action · Shooter · Indie

Revolution Ace
Shared: Action · Indie · Bullet Hell

Brotato
Shared: Singleplayer · Bullet Hell · Arena Shooter

Sky Force Reloaded
Shared: Bullet Hell · Action · Arcade

Project Wingman
Shared: Action · Indie · Singleplayer

BALL x PIT
Shared: Action · Bullet Hell · Arcade

Grand Theft Auto V Legacy
Shared: Action · Singleplayer · Shooter

Exit the Gungeon
Shared: Action · Indie · Arcade

Rollerdrome
Shared: Action · Arena Shooter · Shooter

SUPERHOT
Shared: Action · Indie · Singleplayer

Swarmlake
Shared: Action · Shooter · Bullet Hell

DRAINUS
Shared: Action · Indie · Singleplayer

Ikaruga
Shared: Action · Bullet Hell · Arcade

Devil Daggers
Shared: Action · Indie · Arena Shooter

Touhou Kouryudou ~ Unconnected Marketeers.
Shared: Action · Bullet Hell · Singleplayer

Star Saviors
Shared: Action · Bullet Hell · Indie

MADNESS: Project Nexus
Shared: Arena Shooter · Shooter · Action