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 11–20 of 291 games matching Military · updated 12 Oct 2026

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Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
90% of 31

Obscurity: Unknown Threat is a horror shooter game where a team of soldiers must survive against a hidden foe. The game contains both conventional symmetrical FPS game modes as well as asymmetrical battles vs the Obscurity.

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
74% of 39

Collect 100+ anime goddesses in this free-to-play waifu strategy RPG! Build your dream 6-girl squad, master tactical formations, enjoy Live2D heroines and character stories, and challenge spectacular 6v6 battles.

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

Heroes of Might and Magic‑style exploration combined with Three‑Kingdoms siege gameplay. Legendary Chinese heroes gather across time. Supports single‑player challenges, free‑for‑all multiplayer and team‑based combat. No tedious governance, fast‑paced and visceral battles.

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$
Released
Price
$ · Cheap
Players
👥 Not stated

An unapologetically violent boomer shooter with fast-paced combat, grotesque demons, over-the-top weapons, and massive hordes of enemies. Inspired by classics from the '90s and 2000s.

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
100% of 3

Wobble Ops! is a fun physics-based platformer that can be played in Co-op or Single Player mode. Complete the course as fast as possible and lead your team and country to the top of the leaderboard.

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$
Released
Price
$ · Cheap
Players
👥 Not stated

A fast-paced arena shooter where every kill makes you stronger. Stack powerful upgrades, create ridiculous builds, battle players and bots, and survive increasingly chaotic zombie hordes.

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$
Released
Price
$ · Cheap
Players
👥 Up to 6 players

Duelgrounds is a fast-paced 1v1 FPS where every round brings a new weapon and every decision matters. Master the entire arsenal, manage limited resources, and outplay your opponents through skill, strategy, and adaptation.

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
85% of 14

Squad up, gear up, and blow up the scoreboard. Mags and Body Bags delivers a free-to-play, multi-mode FPS with deep customization and zero pay-to-win, for players on mouse and keyboard or controller.

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