Games like Space Elite Force II
Games like Space Elite Force II include Vampire Survivors, Bit Blaster XL, Planes, Bullets and Vodka, Huntdown, and LUFTRAUSERS. We matched them by the tags players give Space Elite Force II on Steam (Shoot 'Em Up, Side Scroller, Bullet Hell, Arcade, and Score Attack): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Bullet Hell · Pixel Graphics · 2D

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

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

Huntdown
Shared: Side Scroller · Shoot 'Em Up · Pixel Graphics

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

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

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

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

Cyberhunt
Shared: Shoot 'Em Up · Arcade · Pixel Graphics

Broforce
Shared: Pixel Graphics · 2D · Side Scroller

DRAINUS
Shared: Shoot 'Em Up · Bullet Hell · Side Scroller

DoDonPachi Resurrection
Shared: Shoot 'Em Up · Bullet Hell · Arcade

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

BALL x PIT
Shared: Bullet Hell · Arcade · Shoot 'Em Up

Ikaruga
Shared: Shoot 'Em Up · Bullet Hell · Arcade

Blazing Chrome
Shared: Side Scroller · Shoot 'Em Up · Pixel Graphics

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

METAL SLUG X
Shared: Arcade · Shoot 'Em Up · Side Scroller

METAL SLUG 3
Shared: Arcade · Side Scroller · Shoot 'Em Up

Sky Force Reloaded
Shared: Shoot 'Em Up · Bullet Hell · Arcade

Exit the Gungeon
Shared: Arcade · Bullet Hell · Pixel Graphics

Revolution Ace
Shared: Shoot 'Em Up · Bullet Hell · Arcade

DARIUSBURST Chronicle Saviours
Shared: Shoot 'Em Up · Arcade · Side Scroller

Steredenn: Binary Stars
Shared: Shoot 'Em Up · Arcade · Pixel Graphics