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About Erroneous

No game lists Erroneous as one of its co-op favourites yet, so here are the closest matches by Steam tags instead.

$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
75% of 16

Armored War is a realistic multiplayer tactical first-person shooter set in the realities of modern conflict. Take part in ground battles using a full arsenal of weapons and equipment

If you loved these, you'll love this

Nuclear Option

Deck Playable
$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
95% of 10,623

Fly near-future aircraft with immersive physics across dynamic battlefields, facing land, air, and sea threats. Wage war against AI or rival pilots using an array of advanced weaponry, including tactical and strategic nuclear weapons capable of annihilating anything in your path.

If you loved these, you'll love this

$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
50% of 4

In POPS, every bullet fired pushes you further into the chaos of war. The story-driven campaign throws you into the boots of an elite operative. Fight through a series of intense missions, face overwhelming odds, unexpected betrayals, and brutal firefights where only the strongest survive.

If you loved these, you'll love this

Dagger Directive

Deck Playable
$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
83% of 829

Dagger Directive is a tactical FPS that allows you to approach each mission in your own way. Select equipment, decide the time of day, then move methodically to complete your mission. Enjoy the modern mechanics and old school graphics as you fight across a variety of missions and environments.

If you loved these, you'll love this

$$
Released
Price
$$ · 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.

If you loved these, you'll love this

Free
Released
Price
Free
Players
👥 1–16 players
Reviews
54% of 24

1-16 Player COMBAT ZONE & 1-4 Player COOP Zombie Wave Survival in Comic style. Singleplayer and Multiplayer Playthrough. Get ready for GUNWATCH: Conflict Survival!

If you loved these, you'll love this

SkyInFlames

Deck Playable
$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
93% of 275

Command drones, deploy mobile air defense systems and conduct tactical aerial operations. Choose your side - Ukrainian or Russian forces - and protect critical infrastructure in a realistic military simulation on a detailed map.

If you loved these, you'll love this