Games like ArchRobo - Robotic Annihilation
Games like ArchRobo - Robotic Annihilation include Broforce, HELLDIVERS™ Dive Harder Edition, Streets of Rage 4, SYNTHETIK: Legion Rising, and The Ascent. We matched them by the tags players give ArchRobo - Robotic Annihilation on Steam (Action, Indie, Twin Stick Shooter, Robots, and 2D): closest matches first, and among equally close ones the better-known games.

Broforce
Shared: Action · 2D · Indie

HELLDIVERS™ Dive Harder Edition
Shared: Twin Stick Shooter · Action · Top-Down Shooter

Streets of Rage 4
Shared: Action · Indie · 2D

SYNTHETIK: Legion Rising
Shared: Indie · Action · Top-Down Shooter

The Ascent
Shared: Action · Top-Down Shooter · Indie

Cyberhunt
Shared: Action · Indie · Twin Stick Shooter

Ultratron
Shared: Action · Indie · Twin Stick Shooter

UFO 50
Shared: Indie · Action · 2D

X-Morph: Defense
Shared: Action · Indie · Twin Stick Shooter

METAL SLUG
Shared: Action · 2D · Retro

Relic Hunters Zero: Remix
Shared: Action · Twin Stick Shooter · Top-Down Shooter

METAL SLUG 3
Shared: Action · Retro · Co-op

Huntdown
Shared: Action · Shooter · 2D

Enter the Gungeon
Shared: Indie · Twin Stick Shooter · Action

Cuphead
Shared: Indie · 2D · Co-op

Blazing Chrome
Shared: Action · Indie · Retro

Crimsonland
Shared: Action · Indie · Shooter

ZeroRanger
Shared: Indie · Action · 2D

Duck Game
Shared: Action · 2D · Indie

Awesomenauts
Shared: Action · 2D · Indie

Door Kickers: Action Squad
Shared: Action · Retro · Shooter

Windowkill
Shared: Action · Indie · Twin Stick Shooter

Revolution Ace
Shared: Action · Indie · Shooter

METAL SLUG X
Shared: Action · 2D · Co-op