Online co-op War games

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

Showing 111–120 of 261 games matching War · updated 12 Oct 2026

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$$
Released
Price
$$ · Standard
Players
👥 Up to 2 players
Reviews
92% of 10,737

Gird your loins and sharpen your steel! Besiege 20 unique enemy lords and battle friends online, in this expanded remaster of the classic 'castle sim'. Relive history with new units, opponents, visuals, audio, campaigns, skirmish trails, co-op and larger maps.

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
89% of 283

Set up the battlefield with an ever growing list of units, vehicles, and emplacements! Then either join the battle as a plastic soldier or be life sized and tower over the chaos.

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
66% of 3

In Pixel Troopers you will fight against all kinds of insects, gather your friends and prepare to survive as long as possible, or face each other in a Deathmatch in this Cooperative Multiplayer game.

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
60% of 29,388

Squad up in Mecha BREAK, a multiplayer third-person shooter offering three intense game modes filled with ground and aerial combat. Pilot your Striker into the breach and neutralize enemies. Are you ready for the ultimate showdown?

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
0% of 6

Warriors is a cutting-edge multiplayer shooter that blends breathtaking realism with adrenaline-pumping action. Designed for players of all skill levels, it offers the flexibility to battle against real players or challenge advanced AI bots in single-player mode. The game boasts seven game modes.

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$$
Released
Price
$$ · Standard
Players
👥 Up to 2 players
Reviews
83% of 160

Team up with a friend to reach a lost submarine and prevent the outbreak of war. Work together on two devices to solve increasingly challenging puzzles, where each of you has your own unique role to play. 2 players: 1 buys the game, the other uses the free Companion App

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$$$
Released
Price
$$$ · Expensive
Players
👥 Not stated
Reviews
55% of 26,193

Broken Arrow is a large-scale real-time modern warfare tactics game that combines the complexity of joint-forces wargaming with action-packed real-time tactics gameplay.

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Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
0% of 1

A fast-paced drone warfare game Pilot advanced drones, hunt enemies, and dominate the skies in intense battles. Play online or offline, with AI opponents in both modes. Master your weapons, outmaneuver rivals, and claim supremacy in this action-packed experience!

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
90% of 1,332

This is war, soldier. Pick a class, gear up, and hit the front line. Whether you're storming beaches, piloting fighters, or holding the line with your squad, your orders are clear: fight hard, fight smart, and never back down. Enlist now! Become a Hero of Valor today!

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
0% of 10

Forest is a multiplayer first-person shooter with an emphasis on realism. This game has a minimum of casual aspects, you won't see the usual crosshair in the center of the screen, health and ammo counter. Everything is done so that the immersion is maximum