Games like Radar Warfare
Games like Radar Warfare include Vampire Survivors, Bit Blaster XL, Planes, Bullets and Vodka, TouHou Makuka Sai ~ Fantastic Danmaku Festival Part II, and Cyberhunt. We matched them by the tags players give Radar Warfare on Steam (Action, Indie, Casual, Shoot 'Em Up, and Bullet Hell): closest matches first, and among equally close ones the better-known games.
Vampire Survivors
Shared: Bullet Hell · Indie · 2D
Bit Blaster XL
Shared: Shoot 'Em Up · Bullet Hell · Action
Planes, Bullets and Vodka
Shared: Action · Casual · Shoot 'Em Up
TouHou Makuka Sai ~ Fantastic Danmaku Festival Part II
Shared: Indie · Bullet Hell · Shoot 'Em Up
Cyberhunt
Shared: Action · Indie · Casual
LUFTRAUSERS
Shared: Indie · Action · Bullet Hell
Touhou Koumakyou: New Classic - the Embodiment of Scarlet Devil
Shared: Shoot 'Em Up · Bullet Hell · Action
Timberman
Shared: Casual · Indie · Action
TouHou Makuka Sai ~ Fantastic Danmaku Festival
Shared: Indie · Action · Bullet Hell
A Dance of Fire and Ice
Shared: Indie · Singleplayer · Difficult
Star Saviors
Shared: Action · Shoot 'Em Up · Indie
Cuphead
Shared: Difficult · Indie · 2D
Skul: The Hero Slayer
Shared: Action · Indie · 2D
Hollow Knight: Silksong
Shared: Indie · Difficult · Singleplayer
Touhou Tenkuushou ~ Hidden Star in Four Seasons.
Shared: Bullet Hell · Shoot 'Em Up · Indie
ZeroRanger
Shared: Indie · Shoot 'Em Up · Action
Zombotron
Shared: Action · Indie · 2D
Touhou Fuujinroku ~ Mountain of Faith.
Shared: Action · Indie · Bullet Hell
BEEP
Shared: Indie · Action · Singleplayer
Defy Gravity Extended
Shared: Indie · Action · Singleplayer
Ikaruga
Shared: Shoot 'Em Up · Action · Bullet Hell
One Finger Death Punch
Shared: Action · Indie · Singleplayer
Just Shapes & Beats
Shared: Bullet Hell · Indie · Action
Hollow Knight
Shared: Indie · 2D · Difficult