Games like Moon Whalers
Games like Moon Whalers include Bit Blaster XL, Planes, Bullets and Vodka, Nova Drift, Vampire Survivors, and LUFTRAUSERS. We matched them by the tags players give Moon Whalers on Steam (Cute, Bullet Hell, Shoot 'Em Up, Arcade, and Casual): closest matches first, and among equally close ones the better-known games.

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

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

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

Vampire Survivors
Shared: Bullet Hell · 2D · Casual

LUFTRAUSERS
Shared: Bullet Hell · Arcade · Action

Beat Hazard
Shared: Bullet Hell · Shoot 'Em Up · Arcade

BALL x PIT
Shared: Bullet Hell · Arcade · Action

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

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

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

Cat Goes Fishing
Shared: Cute · Casual · 2D

Touhou Tenkuushou ~ Hidden Star in Four Seasons.
Shared: Bullet Hell · Shoot 'Em Up · Cute

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

Touhou Kouryudou ~ Unconnected Marketeers.
Shared: Bullet Hell · Shoot 'Em Up · Action

Airscape - The Fall of Gravity
Shared: Shoot 'Em Up · Casual · Cute

Touhou Koumakyou: New Classic - the Embodiment of Scarlet Devil
Shared: Bullet Hell · Shoot 'Em Up · Action

Cuphead
Shared: Cartoon · Bullet Hell · 2D

Cyberhunt
Shared: Shoot 'Em Up · Casual · Action

Mirage Feathers
Shared: Cute · Bullet Hell · Shoot 'Em Up

QP Shooting - Dangerous!!
Shared: Bullet Hell · Shoot 'Em Up · Cute

Commando Collection
Shared: Bullet Hell · Action · Arcade

Revolution Ace
Shared: Shoot 'Em Up · Bullet Hell · Action

Neptunia Shooter
Shared: Bullet Hell · Shoot 'Em Up · Cute

Twin Shot Deluxe
Shared: Cute · Arcade · Casual