Games like Radiant Silvergun
Games like Radiant Silvergun include Bit Blaster XL, Sky Force Reloaded, BIRDCAGE, Ikaruga, and DoDonPachi Resurrection. We matched them by the tags players give Radiant Silvergun on Steam (Shoot 'Em Up, Bullet Hell, Top-Down Shooter, Difficult, and Shooter): closest matches first, and among equally close ones the better-known games.
Bit Blaster XL
Shared: Shoot 'Em Up · Bullet Hell · Difficult
Sky Force Reloaded
Shared: Shoot 'Em Up · Bullet Hell · Top-Down Shooter
BIRDCAGE
Shared: Shoot 'Em Up · Bullet Hell · Top-Down Shooter
Ikaruga
Shared: Shoot 'Em Up · Bullet Hell · Arcade
DoDonPachi Resurrection
Shared: Shoot 'Em Up · Top-Down Shooter · Bullet Hell
Bot Vice
Shared: Bullet Hell · Shoot 'Em Up · Top-Down Shooter
Assault Android Cactus+
Shared: Bullet Hell · Shoot 'Em Up · Difficult
BALL x PIT
Shared: Bullet Hell · Shoot 'Em Up · Arcade
Nova Drift
Shared: Shoot 'Em Up · Bullet Hell · Arcade
Chippy
Shared: Bullet Hell · Shoot 'Em Up · Top-Down Shooter
Phoenix Force
Shared: Bullet Hell · Difficult · Shoot 'Em Up
Furi
Shared: Bullet Hell · Shoot 'Em Up · Difficult
Mushihimesama
Shared: Shoot 'Em Up · Bullet Hell · Arcade
Nex Machina
Shared: Bullet Hell · Shoot 'Em Up · Arcade
ZeroRanger
Shared: Shoot 'Em Up · Bullet Hell · Arcade
Planes, Bullets and Vodka
Shared: Shoot 'Em Up · Bullet Hell · Arcade
Crimzon Clover World EXplosion
Shared: Shoot 'Em Up · Bullet Hell · Top-Down Shooter
Touhou Tenkuushou ~ Hidden Star in Four Seasons.
Shared: Bullet Hell · Shoot 'Em Up · Difficult
Touhou Koumakyou: New Classic - the Embodiment of Scarlet Devil
Shared: Shoot 'Em Up · Bullet Hell · Difficult
Fallout 4
Shared: Post-apocalyptic · Shooter · RPG
Sektori
Shared: Shoot 'Em Up · Bullet Hell · Arcade
20 Minutes Till Dawn
Shared: Bullet Hell · Shoot 'Em Up · Top-Down Shooter
Touhou Kinjoukyou ～ Fossilized Wonders.
Shared: Shoot 'Em Up · Bullet Hell · Shooter
Pathogenic
Shared: Bullet Hell · Top-Down Shooter · Difficult