4X · Building games to play together

18 4X · Building games your group can play together online, including OpenFront, Global Protocol: New World Order, and Emperor of the Fading Suns Enhanced.

All games: 18

OpenFront

A massively multiplayer real-time strategy game pitting hundreds of players against one another. Over one million nuke each other every month.

86%86% positive of 1,173 reviews638Playing now: 638$6.99

Global Protocol: New World Order

Lead any of 221 countries through a living 2026 world in this data-driven grand strategy game. Shape economies, politics and alliances, wage conventional or nuclear war, run covert operations, and rewrite the global order—alone or online with up to seven friends.

73%73% positive of 102 reviews6Playing now: 6$19.99

Emperor of the Fading Suns Enhanced

Command interstellar forces in this epic return of the 4X strategy classic. From planetary politics to galactic warfare, the stakes couldn’t be higher as you lead your Royal House through battles on land, sea, air, and the vast reaches of space.

94%94% positive of 177 reviews9Playing now: 9$9.99

Dune: Spice Wars

A 4X real-time strategy game from the developers of the critically acclaimed Northgard. Set in Frank Herbert’s groundbreaking Dune universe, you must lead your faction and battle for control and dominance over the harsh desert planet of Arrakis.

78%78% positive of 11,615 reviews138Playing now: 138$34.99

Pixel Starships

Pixel Starships is an FTL-style online sci-fi strategy builder and management game with a competitive PVP tournament. Set in the retro galaxy, your role is to explore space, meet aliens, and develop your ship, crew and AI. The game contains deep strategic and 4x elements. PSS is community-driven.

73%73% positive of 3,034 reviews129Playing now: 129Free

HUMANKIND™

Rewrite history by shaping a civilization as unique as you are. Combine 60 cultures from the Ancient Era to the Modern Age to lead your empire to victory. Build thriving cities, outsmart rivals in epic battles, spread your influence and leave your mark on HUMANKIND™.

68%68% positive of 22,250 reviews546Playing now: 546$49.99

The Battle of Polytopia

Welcome to the unique, turn-based strategy game set in the strange, flat world of the Square. Lead one of 16 distinct civilizations to victory by expanding your empire, researching technologies, and ultimately become ruler of the world! Play in single-player or multiplayer mode for up to 16 players.

94%94% positive of 4,790 reviews240Playing now: 240$14.99

Imperiums: Greek Wars

Unique combination of turn-based 4X and historical grand strategy with a mythological twist. Explore the ancient world and build a world leading civilization. Survive, expand, conquer... and win!

82%82% positive of 456 reviews14Playing now: 14$29.99

Airships: Conquer the Skies

Construct mighty steampunk airships and fly them into battle, waging war and conquering the skies!

95%95% positive of 6,221 reviews71Playing now: 71$24.99

Northgard: Definitive Edition

Northgard: Definitive Edition is a critically acclaimed real-time strategy game based on Norse mythology. Lead your clan, uncover the secrets of a mysterious newfound continent and defeat your enemies to conquer the Throne!

85%85% positive of 54,588 reviews983Playing now: 983$9.79

Ymir

Ymir is a 4X multiplayer strategy game combined with a city builder where each player develops a civilization of pigmen starting at the stone age.

72%72% positive of 844 reviews7Playing now: 7$34.99

Driftland: The Magic Revival

After a devastating war between ancient mages, a powerful spell is all that holds together the shattered planet of Driftland. Take on the role of a powerful mage capable of moving and connecting floating lands, develop a mighty empire, and restore Driftland to its former glory!

73%73% positive of 1,445 reviews2Playing now: 2$19.99

Sid Meier’s Civilization® VI

Expand your empire, advance your culture and go head-to-head against history’s greatest leaders. Will your civilization stand the test of time?

86%86% positive of 277,310 reviews21KPlaying now: 20,979$59.99

Demise of Nations

Demise of Nations is a 4X turn-based grand strategy wargame covering the rise of Rome till the fall of modern civilization.

81%81% positive of 558 reviews1Playing now: 1Free

Illyriad - Grand Strategy MMO

Build a city, Create an Empire! Research 400+ technologies, and Build 70+ buildings, Craft and Trade 380+ items in an entirely player driven market. Fight Wars and Forge Alliances with thousands of players and create your own Empire in this award-winning, critically-acclaimed MMO.

67%67% positive of 209 reviews9Playing now: 9Free

Kingdom Wars 2: Definitive Edition

An intense real-time strategy game set in a dark fantasy world of Orcs, Elves and Dragons. Kingdom Wars 2 combines the best of Zombie survival and crafting with complex fast-paced city building. Fight massive siege battles that turn beautiful landscapes into gory blood-soaked battlefields.

66%66% positive of 348 reviews0Playing now: 0$9.99

Yield! Fall of Rome

Forge your Kingdom amidst the Ruins of Rome in this turn-based 4X strategy game! As the world crumbles, rebuild civilization and shape your people’s destiny. Unleash your strategic prowess, conquer provinces, and crush all who stand in your way.

68%68% positive of 221 reviews0Playing now: 0$19.99

Kingdom Wars 4

It's 1347, the time of the Hundred Years' War. In this historical grand strategy and RTS hybrid you play as one of 200 minor lords across medieval Europe, Africa or Middle East. Rise up to take over your Kingdom and be crowned, then fight to preserve your empire as Black Death descends on Europe.

68%68% positive of 175 reviews0Playing now: 0$14.99