Games like Power-Up
Games like Power-Up include LUFTRAUSERS, Planes, Bullets and Vodka, Bit Blaster XL, Star Saviors, and DRAINUS. We matched them by the tags players give Power-Up on Steam (Indie, Action, Shoot 'Em Up, Side Scroller, and Retro): closest matches first, and among equally close ones the better-known games.

LUFTRAUSERS
Shared: Indie · Action · Bullet Hell

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

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

Star Saviors
Shared: Shoot 'Em Up · Action · Indie

DRAINUS
Shared: Action · Indie · Shoot 'Em Up

Vampire Survivors
Shared: Indie · Bullet Hell · Action

ZeroRanger
Shared: Indie · Shoot 'Em Up · Action

My Friend Pedro
Shared: Indie · Action · Shooter

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

Blazing Chrome
Shared: Action · Indie · Retro

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

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

Huntdown
Shared: Action · Side Scroller · Shoot 'Em Up

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

Sine Mora
Shared: Indie · Shoot 'Em Up · Action

Cyberhunt
Shared: Indie · Action · Shoot 'Em Up

Broforce
Shared: Action · Indie · Side Scroller

UBERMOSH Vol.5
Shared: Indie · Action · Retro

Sky Force Reloaded
Shared: Shoot 'Em Up · Action · Indie

METAL SLUG 3
Shared: Action · Side Scroller · Retro

Syder Arcade
Shared: Indie · Shoot 'Em Up · Action

Exit the Gungeon
Shared: Indie · Action · Bullet Hell

Savant - Ascent
Shared: Indie · Action · Shoot 'Em Up

Super Galaxy Squadron EX Turbo
Shared: Shoot 'Em Up · Action · Indie