Games like Shotgun Witch
Games like Shotgun Witch include Chippy, Bot Vice, Bit Blaster XL, Nova Drift, and Enter the Gungeon. We matched them by the tags players give Shotgun Witch on Steam (Arena Shooter, Bullet Hell, Top-Down Shooter, Shoot 'Em Up, and Difficult): closest matches first, and among equally close ones the better-known games.
Chippy
Shared: Bullet Hell · Arena Shooter · Shoot 'Em Up
Bot Vice
Shared: Bullet Hell · Top-Down Shooter · Shoot 'Em Up
Bit Blaster XL
Shared: Bullet Hell · Shoot 'Em Up · Difficult
Nova Drift
Shared: Bullet Hell · Shoot 'Em Up · Arena Shooter
Enter the Gungeon
Shared: Bullet Hell · Difficult · 2D
Touhou Koumakyou: New Classic - the Embodiment of Scarlet Devil
Shared: Bullet Hell · Shoot 'Em Up · Difficult
BALL x PIT
Shared: Bullet Hell · Shoot 'Em Up · Top-Down Shooter
Nuclear Throne
Shared: Bullet Hell · Difficult · Top-Down Shooter
Star of Providence
Shared: Bullet Hell · Shoot 'Em Up · Difficult
Tiny Rogues
Shared: Bullet Hell · Top-Down Shooter · Difficult
Escape From Duckov
Shared: Top-Down Shooter · Shooter · Action
SUPER CHICKEN JUMPER
Shared: Difficult · 2D · Action-Adventure
Rabi-Ribi
Shared: Bullet Hell · Anime · Cute
Titan Attacks!
Shared: Arena Shooter · Bullet Hell · Shoot 'Em Up
DoDonPachi Resurrection
Shared: Top-Down Shooter · Bullet Hell · Shoot 'Em Up
Rabbit and Steel
Shared: Bullet Hell · Difficult · Cute
Minishoot' Adventures
Shared: Bullet Hell · Top-Down Shooter · 2D
Sky Force Reloaded
Shared: Bullet Hell · Shoot 'Em Up · Top-Down Shooter
Touhou Kouryudou ~ Unconnected Marketeers.
Shared: Bullet Hell · Shoot 'Em Up · Shooter
BLUE REVOLVER
Shared: Bullet Hell · Shoot 'Em Up · Action
Touhou Tenkuushou ~ Hidden Star in Four Seasons.
Shared: Bullet Hell · Shoot 'Em Up · Difficult
Planes, Bullets and Vodka
Shared: Shoot 'Em Up · Bullet Hell · Shooter
Revolution Ace
Shared: Shoot 'Em Up · Bullet Hell · Shooter
SNKRX
Shared: Arena Shooter · Top-Down Shooter · Shoot 'Em Up