Games like Doot-Type
Games like Doot-Type include Alex Jones: NWO Wars, Bit Blaster XL, Planes, Bullets and Vodka, Broforce, and Jets'n'Guns 2. We matched them by the tags players give Doot-Type on Steam (Action, Shooter, Shoot 'Em Up, Bullet Hell, and Side Scroller): closest matches first, and among equally close ones the better-known games.

Alex Jones: NWO Wars
Shared: Action · Shooter · Shoot 'Em Up

Bit Blaster XL
Shared: Shoot 'Em Up · Bullet Hell · Shooter

Planes, Bullets and Vodka
Shared: Action · Shoot 'Em Up · Bullet Hell

Broforce
Shared: Action · 2D · Shooter

Jets'n'Guns 2
Shared: Action · Shoot 'Em Up · Side Scroller

Nova Drift
Shared: Shoot 'Em Up · Bullet Hell · Shooter

DRAINUS
Shared: Action · Shoot 'Em Up · Shooter

Huntdown
Shared: Shooter · Action · Side Scroller

Touhou Koumakyou: New Classic - the Embodiment of Scarlet Devil
Shared: Shoot 'Em Up · Bullet Hell · Action

Guns, Gore & Cannoli
Shared: Action · Side Scroller · 2D

My Friend Pedro
Shared: Action · Shooter · Side Scroller

LUFTRAUSERS
Shared: Action · Bullet Hell · Shoot 'Em Up

METAL SLUG
Shared: Action · Side Scroller · Shoot 'Em Up

Touhou Juuouen 〜 Unfinished Dream of All Living Ghost.
Shared: Action · Shoot 'Em Up · Shooter

Guns, Gore and Cannoli 2
Shared: Action · Side Scroller · Shooter

Touhou Kouryudou ~ Unconnected Marketeers.
Shared: Action · Shoot 'Em Up · Bullet Hell

ZeroRanger
Shared: Shoot 'Em Up · Action · Bullet Hell

Revolution Ace
Shared: Action · Shoot 'Em Up · Shooter

Cuphead
Shared: 2D · Bullet Hell · Action

Zombotron
Shared: Action · 2D · Shooter

Star Saviors
Shared: Action · Shoot 'Em Up · Bullet Hell

Sine Mora
Shared: Shoot 'Em Up · Action · Bullet Hell

Soda Crisis
Shared: Action · Side Scroller · Shoot 'Em Up

Neptunia Shooter
Shared: Action · Bullet Hell · Shoot 'Em Up