Games like Model Eight
Games like Model Eight include BALL x PIT, Revolution Ace, DoDonPachi Resurrection, Bit Blaster XL, and Sky Force Reloaded. We matched them by the tags players give Model Eight on Steam (Action, Shoot 'Em Up, Shooter, Top-Down Shooter, and Anime): closest matches first, and among equally close ones the better-known games.

BALL x PIT
Shared: Action · Shoot 'Em Up · Top-Down Shooter

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

DoDonPachi Resurrection
Shared: Shoot 'Em Up · Top-Down Shooter · Shooter

Bit Blaster XL
Shared: Shoot 'Em Up · Shooter · Action

Sky Force Reloaded
Shared: Shoot 'Em Up · Top-Down Shooter · Action

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

DRAINUS
Shared: Action · Shoot 'Em Up · Shooter

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

12 is Better Than 6
Shared: Action · Shooter · Top-Down Shooter

Crimzon Clover World EXplosion
Shared: Action · Shoot 'Em Up · Shooter

BLUE REVOLVER
Shared: Shoot 'Em Up · Action · Bullet Hell

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

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

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

Snake Force
Shared: Action · Shooter · Top-Down Shooter

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

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

Ikaruga
Shared: Shoot 'Em Up · Action · Shooter

Halo: Spartan Assault
Shared: Action · Top-Down Shooter · Shooter

ESCHATOS
Shared: Shoot 'Em Up · Shooter · Top-Down Shooter

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

ICEY
Shared: Action · Anime · 2D

Mushihimesama
Shared: Shoot 'Em Up · Action · Anime

Biodrone Battle
Shared: Action · Shoot 'Em Up · Anime