Games like Mushihimesama V1.5
Games like Mushihimesama V1.5 include BALL x PIT, Vampire Survivors, Returnal™, Atomicrops, and Halls of Torment. We matched them by the tags players give Mushihimesama V1.5 on Steam (Action, Bullet Hell, and Downloadable Content): closest matches first, and among equally close ones the better-known games.
BALL x PIT
Shared: Action · Bullet Hell
Vampire Survivors
Shared: Bullet Hell · Action
Returnal™
Shared: Action · Bullet Hell
Atomicrops
Shared: Action · Bullet Hell
Halls of Torment
Shared: Bullet Hell · Action
Death Must Die
Shared: Bullet Hell · Action
Enter the Gungeon
Shared: Bullet Hell · Action
Noobs Want to Live
Shared: Bullet Hell · Action
Megabonk
Shared: Bullet Hell · Action
Windowkill
Shared: Action · Bullet Hell
Touhou Koumakyou: New Classic - the Embodiment of Scarlet Devil
Shared: Bullet Hell · Action
LUFTRAUSERS
Shared: Bullet Hell · Action
Just Shapes & Beats
Shared: Bullet Hell · Action
Archvale
Shared: Action · Bullet Hell
Angel at Dusk
Shared: Action · Bullet Hell
Furi
Shared: Bullet Hell · Action
Monsters are Coming!
Shared: Action · Bullet Hell
Touhou Kouryudou ~ Unconnected Marketeers.
Shared: Bullet Hell · Action
Soulstone Survivors
Shared: Bullet Hell · Action
Bit Blaster XL
Shared: Bullet Hell · Action
Grand Theft Auto V Legacy
Shared: Action
Tower of Babel: Survivors of Chaos
Shared: Bullet Hell · Action
Planes, Bullets and Vodka
Shared: Action · Bullet Hell
Nuclear Throne
Shared: Bullet Hell · Action