Online co-op Grand Strategy games

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

Showing 41–50 of 79 games matching Grand Strategy · updated 12 Oct 2026

Filters: Grand Strategy × Clear all
$$
Released
Price
$$ · 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.

Free
Released
Price
Free
Players
👥 Not stated
Reviews
57% of 14

点燃你的战魂,投身乱世掀起惊天风暴!化身铁血诸侯,号令三国名将,统领无敌雄师,在真实还原的三国版图上纵横沙场,血战四方!

$
Released
Price
$ · Cheap
Players
👥 2–8 players
Reviews
0% of 1

GET ALL COUNTRIES! Compete with your FRIENDS. Get Countries, build buildings, hotels on a colorful and live map. Establish your political party and strive to come to power. Be the POLITICAL PARTY that wins with the right policies. INVESTORMANIA, Construction, Politics and more...

If you loved these, you'll love this

$$
Released
Price
$$ · Standard
Players
👥 1–4 players
Reviews
54% of 376

Thrive: Heavy Lies the Crown is a complex city builder, where the fate of your kingdom hinges on your every decision. Explore this medieval land alone or with friends, make tough moral choices and conquer your foes in RTS combat. Will you struggle to survive, or find the strength to Thrive?

If you loved these, you'll love this

$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
71% of 7

Scionide is a fast-paced sci-fi shooter set in 2268 AD, where the Amalgamate Republic fights for survival against the Scion Empire. Battle in single-player, PvP, and co-op PvE across dynamic maps.

Free
Released
Price
Free
Players
👥 Not stated
Reviews
68% of 45

东汉末年,天下动荡,群雄并起,在这片风云变幻的乱世中,你将化身一方霸主,自偏安一隅的孤城出发,广揽贤才、经营城政、整军备战、攻城略地。是匡扶汉室,重振中兴?还是割据一方,自立为王?亦或是问鼎中原,君临天下?你的每一次抉择皆可改写这段波澜壮阔的乱世史诗!

Free
Released
Price
Free
Players
👥 Not stated
Reviews
81% of 70

A love letter to old-school browser-based RTS MMOs – with charming nostalgic pixel graphics, a dash of political satire, and tonnes of strategic tension. Build your empire, face off against other players, and take what’s yours in true British imperial style: by dominating the map.

If you loved these, you'll love this

Free
Released
Price
Free
Players
👥 Not stated
Reviews
66% of 54

PlanetX is a real-time strategy MMO set on a spherical planet. Players expand territories, construct buildings, and manage resources to develop their empire. The ultimate goal is to conquer the entire planet by claiming all land plots and outpacing rivals in strategic growth and domination.

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.

$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
85% of 638

In this Grand Strategy game, you take control of the Solar System's Great Powers in 2092 and weather the storm of change as you navigate the uncertain waters of the future. Control the greatest military forces in the world and wage wars on an epic scale: outer space is yours to conquer!