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 81–90 of 291 games matching Military · updated 12 Oct 2026

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$
Released
Price
$ · Cheap
Players
👥 Up to 4 players
Reviews
100% of 1

Command your forces against endless waves of enemies in this intense RTS. Build bases, manage resources, and defend the Omega Beacon across procedurally generated worlds. Play solo or team up with friends via Steam multiplayer.

$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
77% of 92

A 2D multiplayer sandbox game revolving around industry, innovation, factions, combat and emergent gameplay. Design factories, customize tools and weapons, fight or trade with other players or get viciously murdered by an angry badger.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
47% of 72

ISO is an indie built one shot–one kill airsoft first person shooter. Fight alongside your friends in intense 5v5 battles or fight solo in 10 player free for all matches. Immerse yourself in the stunning visuals created in Unreal Engine 5 and dive into fast paced gameplay where every BB counts.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Up to 10 players

Kickback Clash is a fast-paced arena shooter where every shot pushes you back. Fly using your weapons, dash through the air, survive vertical arenas with double jumps, and climb to the top of the global leaderboard by outplaying your opponents.

If you loved these, you'll love this

$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
84% of 743

From a small village of a dozen people to a small kingdom of thousands of people. Arrange for residents to work, gathering, fishing and hunting, farming and mining, processing and manufacturing. Trade, accumulate supplies, increase your strength, and fight evil forces and monsters.

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$
Released
Price
$ · Cheap
Players
👥 2–10 players

Scavenge-Fight-Extract, PvE/PvPvE/PvP, Enter the danger zone, explore the map, scavenge for supplies and gear, battle enemies, and successfully extract. Every mission is fraught with the unknown—will you escape safely with your loot, or lose everything?

Free
Released
Price
Free
Players
👥 Not stated
Reviews
44% of 9

A SLG strategy game with the historical background of the Three Kingdoms! Players develop their own technology, build fortified buildings, and recruit more soldiers to enhance their overall strength Players conquer cities, make achievements, and ultimately unify the world!

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$$
Released
Price
$$ · Standard
Players
👥 Up to 8 players
Reviews
76% of 82

A Three Kingdoms-themed tactical chess game with light strategy and easy controls. Step into the era as a strategist, use over 200 historical figures—each with unique traits and counters—to form teams, revisit key battles, and shape outcomes with your tactics.

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
46% of 49

Engage in thrilling online naval battles with historical warships in PvP(12vs12) action game! Take command of legendary warships and compete against players worldwide in epic naval battles!

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