Games like Echoes III
Games like Echoes III include KovaaK's, My Friend Pedro, Counter-Strike 2, Revolution Ace, and Bright Memory: Infinite. We matched them by the tags players give Echoes III on Steam (Action, Indie, Shoot 'Em Up, and Shooter): closest matches first, and among equally close ones the better-known games.

KovaaK's
Shared: Action · Shooter · Indie

My Friend Pedro
Shared: Action · Indie · Shooter

Counter-Strike 2
Shared: Shooter · Action

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

Bright Memory: Infinite
Shared: Action · Indie · Shooter

Chicken Invaders Universe
Shared: Shoot 'Em Up · Action · Shooter

DRAINUS
Shared: Action · Indie · Shoot 'Em Up

SUPERHOT
Shared: Action · Indie · Shooter

ZeroRanger
Shared: Indie · Shoot 'Em Up · Action

LUFTRAUSERS
Shared: Indie · Action · Shoot 'Em Up

Zombotron
Shared: Action · Indie · Shooter

Aimlabs
Shared: Action · Shooter · Indie

Broforce
Shared: Action · Indie · Shooter

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

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

Bean Battles
Shared: Action · Indie · Shooter

Cube Destroyer
Shared: Action · Indie · Shoot 'Em Up

Intrusion 2
Shared: Action · Indie · Shooter

Huntdown
Shared: Action · Shooter · Shoot 'Em Up

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

State of Anarchy
Shared: Action · Indie · Shoot 'Em Up

The Mean Greens - Plastic Warfare
Shared: Action · Shooter · Indie

Guns, Gore & Cannoli
Shared: Action · Shoot 'Em Up · Indie

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

