4X

Displaying 13 - 21 of 21 games in this category. All games

Starsector

0.6.2 (17 Jan 2014)
Two hundred years ago, the galaxy was ravaged by war.
Genre: 4X, Strategy

Civilization: Call to Power

1.2a (30 Nov 2000)
Build an empire to span history, from primitive beginnings into the sci-fi future of AD 3000.
Genre: 4X, Strategy, Turn-based

Sid Meier’s Alpha Centauri

6.0a (20 Jun 2001)
Legendary designer Sid Meier presents the next evolution in strategy games, with the addictive gameplay.
Genre: 4X, Strategy, Turn-based

Open Imperium Galactica

0.95.103 (18 Sep 2012)
Open-IG is an open source clone of the Digital Reality game Imperium Galactica, a popular real time space strategy game developed around...
Genre: 4X, Strategy

X²: The Threat

by EGOSOFT
1.4.07 (20 Aug 2010)
X²: The Threat is of a new generation of space simulator games, you play the role of Julian Gardna who continues the story set by...
Genre: 4X, Construction and management, Shooter, Simulation

X³: Reunion

by EGOSOFT
Steam only (20 Aug 2010)
The sequel to Egosoft's space combat/trading game series, which featured such games as X: Beyond The Frontier and X²: The Threat,...
Genre: 4X, Construction and management, Shooter, Simulation

Freeciv

2.4.2 (8 Feb 2014)
Freeciv is a Free and Open Source empire-building strategy game inspired by the history of human civilization.
Genre: 4X, Strategy, Turn-based

FreeOrion

0.4.3 (2 Aug 2013)
FreeOrion, an open-source game inspired by Master of Orion, is a turn-based game of epic space strategy that builds on the classic...
Genre: 4X, Strategy, Turn-based

FreeCol

0.10.7 (7 Jan 2013)
FreeCol is a turn-based strategy game based on the old game Colonization, and similar to Civilization.
Genre: 4X, Strategy, Turn-based