Online co-op War games

Every online co-op War game on Steam we know of, newest first. Add tags or a price band to narrow it down.

Showing 1–10 of 261 games matching War · updated 12 Oct 2026

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
66% of 92

Glory to the Heroes set in the Russian-Ukrainian war is an immersive PvPvE mil-sim providing perspective on the modern warfare with combined-arms combat and extensive elements of survival and immersion, where the action is happening in the accurately recreated real-world locations of actual battles

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$
Released
Price
$ · Cheap
Players
👥 1–16 players
Reviews
100% of 10

A stylized third-person WWII shooter for 1 to 16 players, with bots filling out battles of up to 100 soldiers. Fight across Normandy with tanks and planes, house to house, or against the Haunted. Build your own maps and mods.

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
0% of 4

Command armor, infantry, artillery, aircraft, drones and naval forces in a modern real-time wargame. Build your army, scout enemy positions and capture objectives. Play solo against AI or online with other commanders, with eight nations and distinct equipment rosters.

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
72% of 50

FrontWars is a free-to-play multiplayer strategy game where hundreds of players battle for global domination! Build alliances, command armies, grow your economy, and unleash nuclear strikes to wipe your rivals off the map. No pay-to-win: only the strongest will rule the world.

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

You command Ukraine's air defense. Every night — missiles and drone swarms, and always fewer interceptors than targets. By day it's your turn: deep strikes past enemy radars. And when orders aren't enough — take the stick yourself.

$
Released
Price
$ · Cheap
Players
👥 2–8 players

Seven phases. One turn. No shortcuts. A turn-based medieval hex wargame for 2 to 8 players and a love letter to the 1980s hex wargames. Five campaigns where losses carry forward, Fog of Orders, 8-player hotseat, LAN or online. The full Raven's War campaign is free in the demo.

Free
Released
Price
Free
Players
👥 2–4 players
Reviews
74% of 35

HYPERFRAG is a frantic Fast-FPS with guaranteed chaos, built to challenge your friends ! Fight with a totally crazy arsenal in themed arenas. Discover a plethora of game modes for 2 to 4 players and obliterate your friends without mercy !

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$$
Released
Price
$$ · Standard
Players
👥 Up to 4 players
Reviews
88% of 96

Command your ship and fleet in a galaxy that truly lives: 150 sectors where six factions mine, haul, trade, build and wage war whether you're there or not. Trade it, rob it, defend it — or forge your own fleet and carve out your place in it. Play solo or in online co-op.

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$$
Released
Price
$$ · Standard
Players
👥 Not stated

Gravity is a suggestion. CLINK is a fast red-vs-blue arena shooter where the walls and ceiling are drivable ground. Snipe from above, ram rivals off a wall, lay mines anywhere. Six classes, many arenas, bots that fight everywhere, online play, and a map editor.