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4X

4X is a genre of strategy-based games in which players control an empire and "eXplore, eXpand, eXploit, and eXterminate". Emphasis is placed upon economic and technological development, as well as a range of non-military routes to supremacy. Games can take a long time to complete since the amount of micromanagement needed to sustain an empire increases as the empire grows.

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Sci-fi

Science-fiction. Commonly including things like aliens, advanced technology, and settings of outer space or distant planets. 

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sci-fi

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Build a vast interstellar empire in 30 minutes flat.
Rated 4.6 out of 5 stars
(387 total ratings)
Strategy
Play in browser
Slipways
$16.99
Weave isolated planets into a vast trade empire. Enjoy the depth of a space grand strategy game in 60 minutes flat.
Rated 4.8 out of 5 stars
(23 total ratings)
Strategy
A 4x Turn Based strategy game similar to classics like Master of Orion 2 or Birth of the Federation
Rated 4.4 out of 5 stars
(12 total ratings)
Strategy
Turn-based space strategy game
Rated 4.2 out of 5 stars
(26 total ratings)
Strategy
Play in browser
HEXplore, HEXploit, HEXterminate!
Rated 5.0 out of 5 stars
(6 total ratings)
Strategy
2D space-sim in which you can fill any role from pilot to empire leader.
Rated 3.9 out of 5 stars
(10 total ratings)
Simulation
Singleplayer RTS game with procedural campaign
Rated 3.8 out of 5 stars
(13 total ratings)
Strategy
Gather resources, colonize planets, upgrade the spaceship, explore the universe.
Rated 4.8 out of 5 stars
(5 total ratings)
Strategy
Free-to-play SciFi MMORTS for PC.
Rated 4.7 out of 5 stars
(3 total ratings)
Strategy
A browser-based, open-source space game. Work in progress
Rated 4.7 out of 5 stars
(3 total ratings)
Simulation
Play in browser
4X turn-based space strategy
Rated 4.3 out of 5 stars
(3 total ratings)
Strategy
Organize your planets with skill, master resource management and expand in the vastness of space.
Rated 4.3 out of 5 stars
(3 total ratings)
Strategy
Play in browser
Give glory to Man the All-Maker
Rated 4.0 out of 5 stars
(3 total ratings)
Strategy
An epic turn-based space 4X strategy game and spiritual successor to Master of Orion II: Battle at Antares!
Rated 3.5 out of 5 stars
(4 total ratings)
Strategy
Space Opera Simulator
Rated 4.0 out of 5 stars
(2 total ratings)
Simulation
16-bit styled sci-fi 4X
Rated 5.0 out of 5 stars
(1 total ratings)
Strategy
Space mmo online real time strategy game 4x
Rated 5.0 out of 5 stars
(1 total ratings)
Strategy
A Homeworld Inspired space real-time strategy game
Rated 5.0 out of 5 stars
(1 total ratings)
Strategy
Rated 5.0 out of 5 stars
(1 total ratings)
Puzzle
Command your empire, colonize star systems, and conquer the galaxy in this minimalist sci-fi 4x strategy game.
Rated 4.0 out of 5 stars
(1 total ratings)
Strategy
Play in browser
This expansion adds 2 new races fully equipped with unique capabilities, 9 new rulers, 4 new musics, and 4 new leaders!
Rated 3.0 out of 5 stars
(1 total ratings)
Strategy
Space themed turn-based strategy game with real-time combat
Rated 3.0 out of 5 stars
(1 total ratings)
Strategy
Play in browser
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