
O.R.B: Off-World Resource Base
An epic struggle for control!
Still thinking about Interstellar Turtle Legend and its replayable and minimalist tone? These games are a good place to start.
Galimulator is a galactic empire simulation and sandbox game. See how Empires rise and fall, and how the people in them climb through the ranks to bring prestige to their Dynasty. Then throw in an invasion of self replicating Smatter monsters if you want to spice things up.
Replayable, Chaotic
Watch as stars battle for control of a simple simulated galaxy. Each star belongs to a faction, indicated by its color, and combat happens automatically between neighboring stars. Your role is to observe the dynamic battlefield as stars change ownership.
Replayable, Minimalist
From the creators of AI War: Fleet Command comes an all-new grand strategy title with turn-based tactical combat, set in a deep simulation of an entire solar system and its billions of inhabitants. You are the last of a murdered race, determined to unify or destroy the 8 others.
Replayable
Pick one of seven human factions and fight over how to face an alien invasion: seize control of Earth's nations from the shadows, research your way into space, mine asteroids, and build fleets for Newtonian fleet battles across a moving Solar System.
Replayable
Build a galaxy-spanning machine empire! Bend galactic geography to your will to seize hundreds of territories with Fleet, Crypto and Glory. Master your economy with Guilds, Trade Routes and Pilgrimages. Prove your faith, honor your culture, and conquer the Milky Way!
Replayable
StarSim is a spaceship strategy RPG with live galaxy simulation. The game combines real-time with paused starship combat, turn-based crew combat, text quests and more. Be a hero, a trader, a scavenger, a mercenary or a pirate.
Replayable, Retro
A turn-based Galaxy totalwar game. Choose one of 12 factions, direct dozens of admirals, control hundreds of warships, mecha and monsters, set up various buildings, study technology, and lead fleets to carry out grand strategic actions on the map of the galaxy.
Replayable, Retro
Trade, fight, and explore a procedurally generated galaxy in this deep space trading game inspired by 80's sci-fi computer screens and early text based space games. Command fleets, negotiate with alien factions, colonize planets, and forge your legacy across five unique career paths.
Replayable, Minimalist, Retro
Helm your own ship, battle for supremacy in a multi-faction war, and conquer the cosmos in this science fiction turn-based strategy game. Select from more than 100+ diverse star ships and fight for territory across a 2D hex-based grid.
Replayable
The hit mobile game Interstellar Pilot 2 has come to Steam. Join the TEF forces heading to the Gatopean sector to find a new home for mankind. Play how you like in this open world space-sim developed by Pixelfactor.
Replayable
Earth has been destroyed. Mankind is fractured. The galaxy is at war. But one hope remains: a new home for mankind. Probes detected a habitable planet in the Orion sector. You must fight your way to it, but nothing is as it seems. A more devious plan is underway that threatens the entire galaxy.
Replayable, Retro
AI War 2 is a grand strategy and RTS hybrid where growing too fast is the real danger. Sneak, hack, build fleets and strike the AI's core before it notices you. Deep, tense and endlessly replayable, alone or with friends.
Replayable

An epic struggle for control!

Lead your clan from a small settlement all the way to the launch of a colony ship.

Welcome to the Seeker! Run, hide and hack in this indie top-down game that gives a whole new meaning to the word "random!"

Divide the world—and rule the fragments. A turn-based strategy game in the style of a digital board game, where diplomacy, economics, and tactics…

Apollo4x is a casual-to-difficult space trading tycoon game, where success is measured in earnings from how efficient your trade routes are in…

Soldier to the assault! Deploy your troops and destroy the enemy army!

Indie strategy game where you take control of an Empire, lead it to complete domination by colonizing new planets!

Hello Captain, I am proud to announce that you are now manager of the mining colony "Astra".

Iron Stars is a realistic space 4X strategy game where you explore believable star systems, colonize planets and moons, grow your population, and…

The leaders of the seven nations failed to reach a peace agreement. All kingdoms are now at war.

Build and protect your home after a nuclear apocalypse!

Polygons eating polygons eating polygons. An evolution sandbox where the genetics really are simulated.

Design a working starship from the reactor up, then take it into a fresh galaxy each run as a miner, pirate hunter or anything else you fancy.

An indie space-sim and strategy game featuring ship and fleet combat mixed with RTS elements.

The hit mobile game Interstellar Pilot 2 has come to Steam. Join the TEF forces heading to the Gatopean sector to find a new home for mankind.

Steer one of seven factions through an alien arrival, from covert politics on Earth to fleet battles across the Solar System.

Fly, fight, mine and trade your way across a procedurally generated galaxy, then run the faction that rules it.

A turn-based Galaxy totalwar game. Choose one of 12 factions, direct dozens of admirals, control hundreds of warships, mecha and monsters, set up…

Design every deck and turret of a starship, crew it with simulated people, and take it into battles where damage tears your work apart piece by piece.

Assume command of a battle fleet and deploy immediately to the Dust Zone, commander.

Guide a young spacefaring civilization across a fresh galaxy each run, growing it by war, trade, diplomacy or culture until the stars answer to you.

Build fleets in secret, hack the enemy's systems and hit its core before it wakes up to what you are doing.

A pixel-art turn-based Galaxy total war game. You can select 14 factions, 61 heroes, hundreds of warships and mecha, and command multiple fleets to…

Build a turn-based galactic empire your way, from first colony ship to tactical battles between the stars.

Empires of a Tiny Universe is a relaxed single-player RTS where you build and expand your empire across space.

Run one small ship through a simulated economy of mining, trade and war, then build stations and grow a fleet with friends in co-op.

A large-scale 4X strategy game with indirect control and a focus on simulating a space empire.

Trade, fight, and explore a procedurally generated galaxy in this deep space trading game inspired by 80's sci-fi computer screens and early text…

An indie space-sim and strategy game featuring ship and fleet combat mixed with RTS elements.

Design a working starship from the reactor up, then take it into a fresh galaxy each run as a miner, pirate hunter or anything else you fancy.

Steer one of seven factions through an alien arrival, from covert politics on Earth to fleet battles across the Solar System.

Fly, fight, mine and trade your way across a procedurally generated galaxy, then run the faction that rules it.

A Planet of Mine Mastermine Edition is a cozy 4X game with mass strategy!

Stellar Reach is a 4X hard sci-fi strategy game where you control a faction vying for dominance across a hostile galactic frontier.

Step into the world of galactic combat in "WarOS", a Chinese sci-fi game!

Lord of Rigel is a turn-based 4X space strategy game inspired by the classics.