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 231–240 of 291 games matching Military · updated 12 Oct 2026

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$$$
Released
Price
$$$ · Expensive
Players
👥 Up to 4 players
Reviews
74% of 510

Headquarters: World War II is a fast-paced turn-based strategy game where your battlefield tactics are as important as your army management skills. Experience both sides of the war, battling in Europe as the USA, the UK, or Germany. Storm bunkers, occupy houses, win tank duels.

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
76% of 26

Eldorado FPS: A thrilling FPS adventure with diverse modes - Deathmatch, Team Deathmatch, Capture the Flag, Gun Mode, and Zombie Survival. Customize load-outs, compete globally, and rise in the ranks. Intense action, strategy, and endless fun await!

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$$
Released
Price
$$ · Standard
Players
👥 Up to 4 players
Reviews
76% of 8,411

IRR is a tactical PvE Co-Op extract shooter set in a de-stabilized and immersive modern-day Vietnam. As a PMC for a mysterious organization, deal with 3 factions that stand to gain from the chaos. Engage in ruthless combat, plan your deployment, and explore the world as your journey unfolds.

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
75% of 16

Armored War is a realistic multiplayer tactical first-person shooter set in the realities of modern conflict. Take part in ground battles using a full arsenal of weapons and equipment

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
65% of 11,654

Command Mobile Outpost and take XEN Firearm to venture deep into the Signet surveillance off-limit area. Collect unique Weapon Units. Amp up the firepower of the Outpost that fights with you. This is an FTD game - FPS, Tower Defense, Base Building and much more all at the same time.

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

Kill Invaders - Dive into a thrilling multiplayer FPS with an alien storyline. Defend Earth in a battle against extraterrestrial invaders! Single Player, Multiplayer, Deathmatch and Battle Royale Modes !

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
50% of 2

Cerebral Clash is a multiplayer arcade shooter where you take control of a tank powered by an enigmatic sentient brain. Play solo in an intriguing campaign or battle online with friends and foes in thrilling warfare matches!

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
80% of 5

An old-modern school fps, where you can play tactically, or engage in crazy fast-paced combat. Host your own rooms easily, and enjoy a fair game, where victory is determined by your skill.

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
30% of 331

Direct Contact delivers an authentic and immersive first-person, Co-Op tactical experience, built for those who demand realism, strategy, and precision. Operate as Special Forces, utilizing a vast arsenal of real-world weapons and equipment. Engage in dynamic combat.

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
48% of 103

World War Next is a low poly multiplayer FPS set during a WW3 conflict, Choose from over 25 countries. Vehicles like tanks, helicopters, boats and armored cars help players get around quickly.

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