Games like Cossanox
Games like Cossanox include Broforce, Duck Game, Lovers in a Dangerous Spacetime, Guns, Gore & Cannoli, and CARRION. We matched them by the tags players give Cossanox on Steam (Action, Indie, Gore, Sci-fi, and Shoot 'Em Up): closest matches first, and among equally close ones the better-known games.

Broforce
Shared: Action · Indie · Local Co-Op

Duck Game
Shared: Action · Local Multiplayer · Indie

Lovers in a Dangerous Spacetime
Shared: 4 Player Local · Action · Local Multiplayer

Guns, Gore & Cannoli
Shared: Action · Gore · Indie

CARRION
Shared: Gore · Action · Indie

Hotline Miami
Shared: Action · Indie · Gore

Stick Fight: The Game
Shared: Action · Local Multiplayer · 4 Player Local

My Friend Pedro
Shared: Action · Indie · Gore

Bright Memory: Infinite
Shared: Action · Indie · Sci-fi

HELLDIVERS™ 2
Shared: Action · Sci-fi · Shooter

Crawl
Shared: Indie · 4 Player Local · Local Multiplayer

Hotline Miami 2: Wrong Number
Shared: Gore · Action · Indie

DOOM
Shared: Action · Gore · Shooter

ZeroRanger
Shared: Indie · Action · Shoot 'Em Up

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

TowerFall Ascension
Shared: Indie · Action · Local Multiplayer

Huntdown
Shared: Action · Shoot 'Em Up · Shooter

Guns, Gore and Cannoli 2
Shared: Action · Gore · Shoot 'Em Up

DOOM Eternal
Shared: Action · Gore · Shooter

Valfaris
Shared: Action · Indie · Gore

Superfighters Deluxe
Shared: Action · Indie · Gore

Move or Die
Shared: Action · Local Multiplayer · Indie

Dead Space (2008)
Shared: Action · Sci-fi · Space

MO:Astray
Shared: Action · Indie · Sci-fi