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 121–130 of 291 games matching Military · updated 12 Oct 2026

Filters: Military × Clear all
Free
Released
Price
Free
Players
👥 Not stated
Reviews
69% of 33

Alpha Point: Solo-indie multiplayer FPS featuring ray-traced, realistic visuals and slick gunplay. Risk it all in a unique Rank & Loadout system; win matches to earn tags and progress, lose and watch it slip away. Fight in FFA, TDM, CTF, and TSG across 5 maps with your custom loadout. Available now!

If you loved these, you'll love this

Free
Released
Price
Free
Players
👥 1–4 players
Reviews
90% of 327

Lost Lives is a multiplayer 2D shooter with RPG elements set in the post-Soviet wasteland. Fight players in PvP or stand against hostile factions in co-op and endless survival. Hunt for loot, sell it for profit, and build a loadout that fits your playstyle. The right gear means life or death.

If you loved these, you'll love this

Free
Released
Price
Free
Players
👥 Up to 3 players
Reviews
55% of 27

Play as 1 of 3 factions in the fight for control of Domusalus, but beware the Kaecillian menace who threaten both locals and warring factions. Deploy with your gear, search for upgraded loot, and escape in time to keep it for your next assault for planetary dominance.

$
Released
Price
$ · Cheap
Players
👥 1–4 players
Reviews
0% of 2

The Executioner is a 1-4 player online coop shooting survival game. There are a large number of extremely heinous criminals waiting to be executed in the overcrowded prison. In order to survive, they will rush towards you and try to kill you. If you don't kill them, you will be the one killed.

If you loved these, you'll love this

Free
Released
Price
Free
Players
👥 Not stated
Reviews
77% of 22

Compete with players around the world in a fast-paced 3D platforming shooter. Race through a variety of hand crafted maps, shooting at targets with an arsenal of weapons, all to achieve the fastest time on the global leaderboard!

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Up to 3 players
Reviews
42% of 7

Operation Dimera is a co-op game for up to 3 players where you and your friends must save the world. Tackle diverse missions. Work together to solve puzzles that stand in your way and customize your weapons to be ready for anything! The fate of the world is in your hands!

If you loved these, you'll love this

Free
Released
Price
Free
Players
👥 Not stated
Reviews
40% of 415

World war of tanks rages on. Join the battle in one of our real-world tanks! Upgrade your vehicles and destroy the enemy! Play with friends and dominate the war! Play for free, in intuitive and easy to grasp UI, with state-of-the-art graphics, particle effects and authentic sound!

If you loved these, you'll love this

$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
84% of 485

An approachable turn-based grand strategy sandbox. Lead a nation, forge alliances, wage wars and rewrite history. Play solo or with friends, create your own maps and scenarios, and explore community mods on Steam Workshop.

$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
77% of 680

Take charge of a SWAT unit as an elite operator. Command a specialized AI squad or team up in co-op to seize suspects, rescue civilians, and restore order. Study the briefing, kit out your team, and execute your plan with disciplined precision.

If you loved these, you'll love this