Games like Flesh
Games like Flesh include Cuphead, Broforce, Left 4 Dead 2, Revolution Ace, and Blood and Bacon. We matched them by the tags players give Flesh on Steam (Bullet Hell, Shoot 'Em Up, Hand-drawn, Action, and Surreal): closest matches first, and among equally close ones the better-known games.
Cuphead
Shared: Bullet Hell · Hand-drawn · 2D
Broforce
Shared: Action · 2D · Shooter
Left 4 Dead 2
Shared: Action · Shooter · Gore
Revolution Ace
Shared: Shoot 'Em Up · Bullet Hell · Action
Blood and Bacon
Shared: Gore · Action · Shooter
DOOM
Shared: Action · Gore · Shooter
Bit Blaster XL
Shared: Bullet Hell · Shoot 'Em Up · Action
Vampire Survivors
Shared: Bullet Hell · 2D · Action
Angel at Dusk
Shared: Bullet Hell · Action · Hand-drawn
Aliens vs. Predator™
Shared: Action · Gore · Aliens
LUFTRAUSERS
Shared: Bullet Hell · Action · Shoot 'Em Up
Touhou Koumakyou: New Classic - the Embodiment of Scarlet Devil
Shared: Bullet Hell · Shoot 'Em Up · Action
Touhou Juuouen 〜 Unfinished Dream of All Living Ghost.
Shared: Shoot 'Em Up · Bullet Hell · Action
Star Saviors
Shared: Bullet Hell · Shoot 'Em Up · Action
12 is Better Than 6
Shared: Action · Hand-drawn · Shooter
ZeroRanger
Shared: Shoot 'Em Up · Bullet Hell · Action
Enter the Gungeon
Shared: Bullet Hell · Indie · Action
Guns, Gore and Cannoli 2
Shared: Action · Shoot 'Em Up · 2D
Guns, Gore & Cannoli
Shared: Action · Shoot 'Em Up · 2D
Ready or Not
Shared: Shooter · Action · Horror
CARRION
Shared: Gore · Action · Horror
Nova Drift
Shared: Bullet Hell · Shoot 'Em Up · Action
My Friend Pedro
Shared: Action · Gore · Shooter
Planes, Bullets and Vodka
Shared: Shoot 'Em Up · Action · Bullet Hell