Online co-op Gun Customization games

Every online co-op Gun Customization game on Steam we know of, newest first. Add tags or a price band to narrow it down.

Showing 91–100 of 102 games matching Gun Customization · updated 12 Oct 2026

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$
Released
Price
$ · Cheap
Players
👥 Up to 4 players
Reviews
84% of 210

Defend against hordes of zombies in this fun filled top-down shooter. Build and upgrade your base, unlock powerful guns, and take on challenging bosses with up to 4 players in online co-op. Play minigames to earn bonuses and survive the zombie apocalypse one night at a time!

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$
Released
Price
$ · Cheap
Players
👥 Up to 2 players
Reviews
50% of 2

Demon's Blood is a first-person shooter that throws you into a demonic universe. Become a special agent, arm yourself and improve your equipment in different games to repel the demonic forces trying to invade your world.

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
75% of 8

You are not immune — you are evolving. Hunted by the infected and feared by the living, survive a brutal open world where every decision shapes your fate.

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$$
Released
Price
$$ · Standard
Players
👥 Up to 4 players
Reviews
45% of 49,628

PAYDAY 3 is a 1-to-4 player co-op FPS and the ultimate heist fantasy, set in the most iconic city in the world. Gone without a trace or through a hail of bullets. Either way, you're getting out with the prize.

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
66% of 2,628

Microvolts Recharged is a quirky lobby-based third-person shooter with a unique toy theme. The game features a fun character cast and freely swappable 7 weapon types. Battle it out across dozens of large well-designed maps and frag your enemies!

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$
Released
Price
$ · Cheap
Players
👥 Not stated

Design your own Superbot and fight alongside or against others in this VR battle arena! Make your own motion gestures to activate a variety of abilities and effects to aid you in destroying your opponents. Includes AI bots and different game modes like "smash off" and endless play.

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
86% of 8,908

In OPERATOR, you will play as an elite Tier 1 operator undergoing dangerous clandestine operations all over the globe. With a strategic, measured, and unforgiving style of gameplay. You are the tactical advantage, Good luck.

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$$
Released
Price
$$ · Standard
Players
👥 Up to 4 players
Reviews
78% of 3,767

Zero Caliber is the ultimate VR FPS: single player/Co-op campaign, PvP and mod support with 40+ realistic firearms & melee weapons, 100+ unlockable skins, 50+ attachments, realistic physics, progression & more! Immerse yourself in the action, customize your gear and unleash your inner hero!

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
100% of 6

Challenge the greatest legends and creatures in this epic coliseum! Collect your treasures and upgrade your gears until you become number one in the entire multiverse. The game is an Arcade based on waves of enemies, each enemy has a unique behavior and a list of specific rewards.

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