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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.
Strategy
Play in browser
A 4x Turn Based strategy game similar to classics like Master of Orion 2 or Birth of the Federation
Strategy
Turn-based space strategy game
Strategy
Play in browser
Free-to-play SciFi MMORTS for PC.
Strategy
Gather resources, colonize planets, upgrade the spaceship, explore the universe.
Strategy
4X turn-based space strategy
Strategy
HEXplore, HEXploit, HEXterminate!
Strategy
Space Opera Simulator
Simulation
Command your empire, colonize star systems, and conquer the galaxy in this minimalist sci-fi 4x strategy game.
Strategy
Play in browser
Organize your planets with skill, master resource management and expand in the vastness of space.
Strategy
Play in browser
Give glory to Man the All-Maker
Strategy
Space mmo online real time strategy game 4x
Strategy
16-bit styled sci-fi 4X
Strategy
Space themed turn-based strategy game with real-time combat
Strategy
Play in browser
4x strategy game
Strategy
A Micro Rogue-Like 4X Strategy Game
Strategy
(in development) Build cities on alien worlds
Strategy
A remake and remix of certain classic 4x games.
Strategy
Asteroids meets survival, made with Godot
Strategy
Play in browser
Wargame 4X Online Multiplayer
Strategy
Explore and survive the unknown fungal world, find the fuel you need to escape!
Strategy
Manage your colony and supply chains in an asteroid field, where resources are limited and everything is breakable.
Simulation
Manage your star system in this civ-like strategy game where your goal is to collect the most resources as possible.
Strategy
Play in browser
Small Space Strategy game
Strategy
WEB BROWSER 4X MMO REAL TIME STRATEGY
Strategy
Play in browser
A browser-based, open-source space game. Work in progress
Simulation
Play in browser
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