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 281–290 of 291 games matching Military · updated 12 Oct 2026

Filters: Military × Clear all
$$
Released
Price
$$ · Standard
Players
👥 Up to 4 players
Reviews
78% of 3,767

Zero Caliber is the ultimate VR FPS: single player/Co-op campaign, PvP and mod support with 40+ realistic firearms & melee weapons, 100+ unlockable skins, 50+ attachments, realistic physics, progression & more! Immerse yourself in the action, customize your gear and unleash your inner hero!

If you loved these, you'll love this

Free
Released
Price
Free
Players
👥 Up to 2 players
Reviews
50% of 20

"Ghoul League" is a doomsday treasure brush shooting game. Any corpse ghost seen in the game can be caught against humans. "Two person game is the future". The game also supports multi person mode. You can break through customs and brush suits with your partners!

If you loved these, you'll love this

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

Welcome to this multiplayer survival sandbox game! In this world, you will need to establish your own survival base from scratch, collect materials, make tools, build towns, manufacture weapons, explore unknown fields, and so on. You can team up with other players and survive together, as well as en

If you loved these, you'll love this

Free
Released
Price
Free
Players
👥 Not stated
Reviews
50% of 3,806

WWII Online is a massive, persistent free-to-play MMO FPS driven entirely by players. Fight as Army, Air, or Naval forces and earn Victory Points to access more units. One global server. No scripts. Real outcomes. No zones. Huge world (300,000 km²). ENLIST NOW!

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
88% of 9

Fast-paced competitive FPS with character abilities. Combining realistic settings with superpowers. Geared toward ESPORT with In-game Map Editor. Organize tournaments, customize weapons and characters, replay matches, manage your team, variety of modes and exclusive attention to gunplay.

If you loved these, you'll love this

$$$
Released
Price
$$$ · Expensive
Players
👥 1–3 players
Reviews
66% of 2,883

Tom Clancy's Rainbow Six® Extraction is a tactical, co-op, PvE first-person shooter where you and your squad face an evolving alien threat. Teamwork, tactics, and flawless execution are key to your survival.

If you loved these, you'll love this

Free
Released
Price
Free
Players
👥 Not stated
Reviews
70% of 17

Iron Armor Storm "is a 3D strategy game based on the theme of World War II Tank War, with the collection of various legendary tanks and tank strategy combinations as the core gameplay, and community-based, camp based cooperation and competition as auxiliary means.

If you loved these, you'll love this