Games like NEON Ultra
Games like NEON Ultra include Waves, Beat Hazard, Geometry Wars™ 3: Dimensions Evolved, Bit Blaster XL, and Chippy. We matched them by the tags players give NEON Ultra on Steam (Action, Shoot 'Em Up, Bullet Hell, Twin Stick Shooter, and Shooter): closest matches first, and among equally close ones the better-known games.
Waves
Shared: Shoot 'Em Up · Bullet Hell · Twin Stick Shooter
Beat Hazard
Shared: Bullet Hell · Twin Stick Shooter · Shoot 'Em Up
Geometry Wars™ 3: Dimensions Evolved
Shared: Action · Shoot 'Em Up · Twin Stick Shooter
Bit Blaster XL
Shared: Shoot 'Em Up · Bullet Hell · Shooter
Chippy
Shared: Bullet Hell · Shoot 'Em Up · Twin Stick Shooter
Nex Machina
Shared: Action · Bullet Hell · Twin Stick Shooter
Assault Android Cactus+
Shared: Bullet Hell · Shoot 'Em Up · Twin Stick Shooter
Nova Drift
Shared: Shoot 'Em Up · Bullet Hell · Shooter
Greedland
Shared: Shoot 'Em Up · Bullet Hell · Twin Stick Shooter
Dead Estate
Shared: Twin Stick Shooter · Bullet Hell · Shoot 'Em Up
BALL x PIT
Shared: Action · Bullet Hell · Shoot 'Em Up
Planes, Bullets and Vodka
Shared: Action · Shoot 'Em Up · Bullet Hell
Touhou Koumakyou: New Classic - the Embodiment of Scarlet Devil
Shared: Shoot 'Em Up · Bullet Hell · Action
Touhou Kouryudou ~ Unconnected Marketeers.
Shared: Shoot 'Em Up · Action · Bullet Hell
Ikaruga
Shared: Shoot 'Em Up · Bullet Hell · Action
Revolution Ace
Shared: Action · Shoot 'Em Up · Bullet Hell
Touhou Juuouen 〜 Unfinished Dream of All Living Ghost.
Shared: Action · Shoot 'Em Up · Bullet Hell
Star of Providence
Shared: Bullet Hell · Shoot 'Em Up · Action
State of Anarchy: Master of Mayhem
Shared: Action · Bullet Hell · Shoot 'Em Up
ZeroRanger
Shared: Shoot 'Em Up · Bullet Hell · Action
Touhou Kinjoukyou ～ Fossilized Wonders.
Shared: Shoot 'Em Up · Bullet Hell · Action
Enter the Gungeon
Shared: Bullet Hell · Twin Stick Shooter · Action
LUFTRAUSERS
Shared: Bullet Hell · Action · Shoot 'Em Up
Star Saviors
Shared: Shoot 'Em Up · Action · Bullet Hell