Games like Dimension Tripper Neptune: TOP NEP
Games like Dimension Tripper Neptune: TOP NEP include Mirage Feathers, Vampire Survivors, BALL x PIT, Planes, Bullets and Vodka, and Bit Blaster XL. We matched them by the tags players give Dimension Tripper Neptune: TOP NEP on Steam (Action, Arcade, On-Rails Shooter, Bullet Hell, and Shoot 'Em Up): closest matches first, and among equally close ones the better-known games.

Mirage Feathers
Shared: On-Rails Shooter · Bullet Hell · Anime

Vampire Survivors
Shared: Bullet Hell · Pixel Graphics · 2D

BALL x PIT
Shared: Action · Arcade · Bullet Hell

Planes, Bullets and Vodka
Shared: Action · Shoot 'Em Up · Arcade

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

LUFTRAUSERS
Shared: Arcade · Action · Bullet Hell

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

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

Mushihimesama
Shared: Arcade · Action · Bullet Hell

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

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

Rabi-Ribi
Shared: Bullet Hell · Anime · Pixel Graphics

BLUE REVOLVER
Shared: Action · Bullet Hell · Shoot 'Em Up

Muse Dash
Shared: Anime · Female Protagonist · 2D

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

SUPER CHICKEN JUMPER
Shared: Arcade · 2D · Pixel Graphics

Ex-Zodiac
Shared: On-Rails Shooter · Arcade · Shoot 'Em Up

Exit the Gungeon
Shared: Arcade · Action · Bullet Hell

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

METAL SLUG X
Shared: Action · Arcade · Shoot 'Em Up

DoDonPachi Resurrection
Shared: Bullet Hell · Arcade · Shoot 'Em Up

Last Command
Shared: Bullet Hell · Action · Anime

METAL SLUG
Shared: Action · Arcade · Shoot 'Em Up

TEVI
Shared: Bullet Hell · Anime · Pixel Graphics