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 41–50 of 291 games matching Military · updated 12 Oct 2026

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
77% of 103

多职业战争策略手游,你可以在每个赛季中体验镇军、青囊、奇佐、天工等六大职业,在沙盘中施展多样的职业天赋与职业技能去影响补给、战术、地形、局势,与盟友打出多种精彩配合与战役,或火烧连营八百里,或奇袭粮道以弱胜强等等,你可以通过谋略感受千变万化的三国沙盘战场,让策略游戏从此不再是枯燥的调兵遣将。 此外,《三国:谋定天下》在长线运营和公平的游戏生态基础上,做到不卖资源、不卖加速、不锁卡、没有VIP。这,将带给你前所未有的SLG沙盘乐趣和激动人心的游戏体验!

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$
Released
Price
$ · Cheap
Players
👥 Not stated

Something unexpected happened. Stacked containers, faintly visible docks in the mist, I must disembark. Perhaps there are tools and medicine inside the container. We will face challenges such as disasters, zombies, pirates, and survival pressures until the small boat is built and we return to land.

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$$
Released
Price
$$ · Standard
Players
👥 Up to 64 players
Reviews
81% of 3,870

From commanding the battle standing on the bridge of your flagship all the way down to tactical infantry firefights - AFF brings together all the combat you ever loved in a rich science fiction setting. Boarding, pilotable capital ships, deep weapon customization and full Bot support included!

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$$
Released
Price
$$ · Standard
Players
👥 Up to 6 players
Reviews
81% of 1,313

GERONIMO is an immersive, tactical CQB shooter built for Virtual Reality that depicts a modern-day world in which Tier 1 operators are called to implement unconventional operations as members of elite teams. Breaching, in-depth character and weapon customization and more! "Who Dares, Wins"

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
0% of 4

Free-to-play space MMO. Pilot a starship across an infinite procedural galaxy — explore 15 civilizations, claim sectors, fight in fleets, trade on the player marketplace.

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
100% of 2

Develop your nation, command your army, and dominate the world in a real-time strategy game combining economic management, diplomacy, technological progress, and military conquest.

Free
Released
Price
Free
Players
👥 Up to 16 players
Reviews
84% of 19

A multiplayer top-down tank game for up to 16 players. Capture bases and pillboxes, harvest trees, build roads and walls, lay mines, and battle for control of the island. The Macintosh classic, rebuilt for modern platforms — free, open source, and cross-platform across desktop, mobile, and web.

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$
Released
Price
$ · Cheap
Players
👥 Up to 4 players
Reviews
75% of 4

Humanity’s Sun is destabilising. Worlds are on fire. A Solar-wide evacuation has begun. Earth’s military force—The Lunar Corps—prepares the colonisation of our new star system: Arcadia. But rising distress calls and radio silence hint at an unseen enemy lurking in the shadows...

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$
Released
Price
$ · Cheap
Players
👥 Not stated

The Fibrous - Sci-Fi Online or Single-Player TPS (Over-The-Shoulder) covering the story of an ex-marine recruited by what's left of the military to help take back Earth after a meteor crash-lands into Earth and aliens with fiber-like skin emerge, thinking they can take this planet for their own.

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