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 131–140 of 261 games matching War · updated 12 Oct 2026

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$$
Released
Price
$$ · Standard
Players
👥 Up to 2 players
Reviews
82% of 267

Choose a planet, build your fortress, and prepare for war. Arm yourself with powerful weapons, deploy troops, construct turrets, and defend your stronghold against relentless attacks. Team up with a friend or fight alone in this action packed block builder, where only the strongest survive.

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
42% of 7

Rapid Impact is an online PvP-PvE shooter in a post-apocalyptic world. Fight players or AI in various modes. The game evolves with community feedback, shaping its future through player voting! Wishlist Rapid Impact now and be among the first to experience intense PvP-PvE battles!

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$$$
Released
Price
$$$ · Expensive
Players
👥 Up to 2 players
Reviews
78% of 1,869

ALARM! You have been selected for a mission which will shape the fate of the entire world. Witness the very beginning of the legendary elite WWII force in Commandos: Origins. The long-awaited sequel to the Commandos series brings you right back to the foundation of the real-time tactics genre.

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
93% of 260

Realistic Ukrainian FPV combat drone simulator built with frontline pilots. Train like a real pilot: fight through enemy jamming, watch your battery, find armor weak spots, and finish the strike before the signal dies. Supports RadioMaster, DJI FPV, TBS and gamepads. Online co-op, mission editor.

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Free
Released
Price
Free
Players
👥 Up to 8 players
Reviews
71% of 21

FPS party game, 8 players compete in a tournament with a multitude of competitive gamemodes ! Solo, duo or team (4v4), prepare to fight in fast and tactical gamemodes. (Versus, Gungame, Battle royal, Dodegball, Runner ...)

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
88% of 84

Real-time dynamic tactics with the strong focus on squad positioning and collaboration. Connect to the warzone from your home PC and orchestrate modern military operations from the Drone Perspective.

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$$
Released
Price
$$ · Standard
Players
👥 Up to 4 players
Reviews
69% of 8,622

Onward is the most immersive tactical VR shooter. Join your squad for a wide variety of competitive PvP, co-op PvE, and solo game modes, including intense multiplayer battles or 4-player co-op missions. Realistic weaponry and combat mechanics will push your survival and combat skills to their limit

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Free
Released
Price
Free
Players
👥 1–4 players
Reviews
83% of 18

Section Gamma is a turn-based strategy game set in a post-apocalyptic world for 1-4 players. It combines classic RTS elements with the strategic depth of chess. Play an exciting single-player campaign or fight alongside friends in multiplayer matches.

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

The Little World is a strategy-based tactical game featuring random campaigns, story maps, custom game maps, and custom character creation, with support for multiplayer battles and cooperation.

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
57% of 7

A high-simulation emperor simulation game with a real game timeline. From the first perspective of the simulated emperor's accession to the throne, he governs the government, manages officials and concubines, raises children, conquers the world, and experiences the life of an emperor.