Games like Bat Blitz
Games like Bat Blitz include Vampire Survivors, BALL x PIT, Megabonk, Nuclear Throne, and Enter the Gungeon. We matched them by the tags players give Bat Blitz on Steam (Action, Casual, Action Roguelike, Top-Down Shooter, and Twin Stick Shooter): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Action Roguelike · Bullet Hell · Roguelite

BALL x PIT
Shared: Action · Action Roguelike · Arcade

Megabonk
Shared: Action Roguelike · Action · Bullet Hell

Nuclear Throne
Shared: Action Roguelike · Action · Bullet Hell

Enter the Gungeon
Shared: Action Roguelike · Bullet Hell · Twin Stick Shooter

Halls of Torment
Shared: Action Roguelike · Action · Bullet Hell

Rocket Rats
Shared: Action Roguelike · Casual · Action

20 Minutes Till Dawn
Shared: Action Roguelike · Bullet Hell · Top-Down Shooter

SYNTHETIK: Legion Rising
Shared: Action · Top-Down Shooter · Action Roguelike

Death Must Die
Shared: Action Roguelike · Bullet Hell · Action

Deep Rock Galactic: Survivor
Shared: Action Roguelike · Top-Down Shooter · Bullet Hell

Boneraiser Minions
Shared: Action Roguelike · Bullet Hell · Casual

Relic Hunters Zero: Remix
Shared: Action · Twin Stick Shooter · Top-Down Shooter

Blazing Beaks
Shared: Action Roguelike · Action · Top-Down Shooter

Rogue: Genesia
Shared: Action Roguelike · Bullet Hell · Twin Stick Shooter

Cyberhunt
Shared: Action · Casual · Twin Stick Shooter

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

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

Time Wasters
Shared: Action Roguelike · Twin Stick Shooter · Bullet Hell

Goobies
Shared: Action Roguelike · Top-Down Shooter · Casual

Windowkill
Shared: Action · Action Roguelike · Arcade

SNKRX
Shared: Action Roguelike · Top-Down Shooter · Roguelite

Zombieville USA 3D
Shared: Action · Top-Down Shooter · Arcade

Nova Drift
Shared: Action Roguelike · Bullet Hell · Arcade