Single-player games like Unconquered Sun
Below are 9 single-player Steam games similar to Unconquered Sun, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Unconquered Sun page.
Ranked picks
- 1
Galaxor
Single-player alternative to Unconquered Sun — playable solo, no multiplayer required. Shares Strategy and Simulation with Unconquered Sun.
Galaxor is an online sci-fi strategy game where you build planets, research technologies, command fleets and expand your empire across the galaxy. Manage resources, join clans, take part in events and face alien threats in long-term space warfare.
- 2
New Stars
Single-player alternative to Unconquered Sun — playable solo, no multiplayer required. Shares Action and Strategy with Unconquered Sun.
Expand your own galactic empire across new stars, research technologies, and challenge great alien powers in this immersive 4X grand strategy game. Build interstellar colonies, and starbases to gather more resources. Explore a unique galaxy full of secrets, great perils, and limitless possibilities.
- 3
After the Crash : Colony
Single-player alternative to Unconquered Sun — playable solo, no multiplayer required. Shares Strategy and Indie with Unconquered Sun.
Build order on a strange planet, keep your crew alive, and gather the parts needed to repair the crashed main ship. Manage resources, explore new areas, face growing threats, and strengthen your colony a little more with each passing day.
- 4
Battlestar Galactica: Scattered Hopes
Single-player alternative to Unconquered Sun — playable solo, no multiplayer required. Shares Action and Strategy with Unconquered Sun.
In Battlestar Galactica: Scattered Hopes, take command of a fleet escaping the annihilation of the Twelve Colonies. Manage crises on board as you prepare for the next encounter with the Cylon Fleet. Times are dire, and hard choices must be made. Your only hope: rejoin the Battlestar Galactica.
- 5
BattleGroupVR
Single-player alternative to Unconquered Sun — playable solo, no multiplayer required. Shares Action and Strategy with Unconquered Sun.
BattleGroupVR is a first person real-time space strategy where you lead a fleet of powerful warships into battle from the bridge of your own flagship. Assemble your fleet, upgrade your load-outs, train your captains, engage the enemy and secure the sector. Try not to go down with the ship.
- 6
Pixel Starships 2
Single-player alternative to Unconquered Sun — playable solo, no multiplayer required. Shares Strategy and Simulation with Unconquered Sun.
First Glimpse on Steam Next: Build, Configure, and Manage every aspect of your own Starship. An FTL-esque game in a MMO setting. Pre bundled with deep strategy, exploration, PVP, market economy, trading, mining. Basically everything a star captain wants to do after a day at the office :)
- 7
Star Command Galaxies
Single-player alternative to Unconquered Sun — playable solo, no multiplayer required. Shares Action and Strategy with Unconquered Sun.
Take command in the ultimate starship simulator: Star Command Galaxies. Become a Captain, recruit your crew, customize and upgrade your starship, battle alien vessels, teleport to away missions and repel boarding invaders in this real-time strategy simulation adventure from indie studio Warballoon.
- 8
FTL: Faster Than Light
Single-player alternative to Unconquered Sun — playable solo, no multiplayer required. Shares Strategy and Indie with Unconquered Sun.
This "spaceship simulation roguelike-like" allows you to take your ship and crew on an adventure through a randomly generated galaxy filled with glory and bitter defeat.
- 9
Suborbital
Single-player alternative to Unconquered Sun — playable solo, no multiplayer required. Shares Indie with Unconquered Sun.
A sci-fi survival game with a twist. Set in a sub-orbit of a black hole, collect materials and scavenge wrecks in order to repair your damaged ship. However, time is not on your side.