Games like Flowershop Master Yuukarin!
Games like Flowershop Master Yuukarin! include Touhou Koumakyou: New Classic - the Embodiment of Scarlet Devil, Touhou Kouryudou ~ Unconnected Marketeers., Grand Theft Auto V Legacy, 永远消失的幻想乡 ~ The Disappearing of Gensokyo, and Vampire Survivors. We matched them by the tags players give Flowershop Master Yuukarin! on Steam (Action, Shooter, Bullet Hell, 2D, and Anime): closest matches first, and among equally close ones the better-known games.

Touhou Koumakyou: New Classic - the Embodiment of Scarlet Devil
Shared: Bullet Hell · Action · Faith

Touhou Kouryudou ~ Unconnected Marketeers.
Shared: Action · Bullet Hell · Shooter

Grand Theft Auto V Legacy
Shared: Action · Shooter · Singleplayer

永远消失的幻想乡 ~ The Disappearing of Gensokyo
Shared: Bullet Hell · Anime · Action

Vampire Survivors
Shared: Bullet Hell · 2D · Singleplayer

Touhou Juuouen 〜 Unfinished Dream of All Living Ghost.
Shared: Action · Bullet Hell · Shooter

Call of Duty®
Shared: Shooter · Action · Singleplayer

BioShock Infinite
Shared: Action · Shooter · Singleplayer

ICEY
Shared: Action · Anime · 2D

Dungeon Munchies
Shared: Action · Anime · 2D

My Friend Pedro
Shared: Action · Shooter · Singleplayer

Ravenfield
Shared: Shooter · Action · Singleplayer

Just Cause™ 3
Shared: Action · Shooter · Singleplayer

Exit the Gungeon
Shared: Action · Bullet Hell · 2D

DRAINUS
Shared: Action · Shooter · 2D

Borderlands 2
Shared: Shooter · Action · Funny

Mirage Feathers
Shared: Bullet Hell · Anime · Shooter

Broforce
Shared: Action · 2D · Shooter

Touhou Fuujinroku ~ Mountain of Faith.
Shared: Action · Bullet Hell · Faith

Battlefield™ 6
Shared: Shooter · Action · Singleplayer

Half-Life 2
Shared: Action · Shooter · Singleplayer

Touhou Kaeizuka ~ Phantasmagoria of Flower View.
Shared: Action · Shooter · 2D

Tower of Babel: Survivors of Chaos
Shared: Bullet Hell · Action · Bullet Heaven

Megabonk
Shared: Bullet Hell · Bullet Heaven · Action