Online co-op Military games

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

Showing 61–70 of 291 games matching Military · updated 12 Oct 2026

Filters: Military × Clear all
$$
Released
Price
$$ · Standard
Players
👥 Up to 2 players
Reviews
66% of 42

A tactical Vietnam War shooter with open mission areas. Infiltrate, ambush, or go in loud. Customize weapons, use vehicles, and play solo, in coop, or PvP. Create missions with the built-in editor.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Not stated

WarBoard: Arena Empire is a turn-based tactical strategy game on a hex arena. Command Rome, the Turks, Vikings, Egypt, Japan or Persia. Play solo against AI, or battle up to 4 Steam friends in private matches. Every move counts.

Free
Released
Price
Free
Players
👥 Not stated
Reviews
63% of 765

Join this free-to-play PvP online naval shooter with fast-paced combat, easy-to-learn gameplay, intuitive controls, and cross-platform play on Steam, console, and mobile. Choose from 600+ warships and 150+ Commanders, and master tactics on diverse maps. Play now and become a legend!

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
93% of 275

Command drones, deploy mobile air defense systems and conduct tactical aerial operations. Choose your side - Ukrainian or Russian forces - and protect critical infrastructure in a realistic military simulation on a detailed map.

If you loved these, you'll love this

$$
Released
Price
$$ · Standard
Players
👥 Up to 10 players
Reviews
92% of 1,417

SimplePlanes is back! Build planes, cars, or anything else using powerful procedural parts! Explore detailed environments with friends in multiplayer, cause chaos, or download 1,000,000 community crafts for free.

If you loved these, you'll love this

$$$
Released
Price
$$$ · Expensive
Players
👥 Not stated
Reviews
74% of 663

Sudden Strike 5 delivers real-time tactics in epic WWII battles. A host of tactical options and more than 300 playable units open-up multiple approaches to reach your objectives in a 25 mission campaign on historical battlefields in Europe and North Africa.

Free
Released
Price
Free
Players
👥 Not stated
Reviews
61% of 1,271

Myth of Empires: Throne is a free seasonal multiplayer warfare sandbox. Explore vast lands inspired by multiple civilizations, tame creatures, forge powerful weapons, and build your guild. Lead cross-server expeditions, conquer territories, and compete with players worldwide for the ultimate throne!

If you loved these, you'll love this

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

Engage in realistic gunfights, and competitive multiplayer battles. Experience smooth shooting mechanics, detailed environments, and intense action. Features: • Realistic FPS shooting mechanics • Multiplayer battles • Smooth movement and gunplay • Immersive battlefield environments

If you loved these, you'll love this