Single-player games like X3: Terran Conflict
Below are 13 single-player Steam games similar to X3: Terran Conflict, 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 X3: Terran Conflict page.
Ranked picks
- 1

X3: Reunion
Single-player alternative to X3: Terran Conflict — playable solo, no multiplayer required. Shares Strategy with X3: Terran Conflict.
X3: Reunion continues the epic space saga, blending deep space trading and intense real-time combat. Explore a vast universe, establish your empire, and shape the new frontier. With enhanced graphics and intricate economies, it's a journey of strategy, simulation, and interstellar intrigue.
- 2

X4: Foundations
Single-player alternative to X3: Terran Conflict — playable solo, no multiplayer required. Shares Action and Strategy with X3: Terran Conflict.
Your journey to building a vast space empire begins behind the controls of a single ship. Explore, trade, fight, and build as you rise to command fleets, stations, and entire economies in a living, fully simulated universe that reacts to every decision.
- 3

X2: The Threat
Single-player alternative to X3: Terran Conflict — playable solo, no multiplayer required. Shares Strategy with X3: Terran Conflict.
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 X: Beyond The Frontier. The updated graphics engine gives the universe a fresher feel with newly designed ships and stations adding to the complexity of the universe.
- 4

X: Beyond the Frontier
Single-player alternative to X3: Terran Conflict — playable solo, no multiplayer required. Shares Strategy and Simulation with X3: Terran Conflict.
The Human Race had advanced to the point where we could travel among the stars, we developed giant automated machines to help us colonise other worlds, but there was a fault in their programming and they turned and attacked. Forcing us to lay a trap to protect Earth and exiling the Human race to stay on Earth once again.
- 5

Evochron Mercenary
Single-player alternative to X3: Terran Conflict — playable solo, no multiplayer required. Shares Action and Simulation with X3: Terran Conflict.
The life of an independent mercenary is rarely without excitement. Your spacecraft awaits and your adventure begins in the Sapphire star system.
- 6

Avorion
Single-player alternative to X3: Terran Conflict — playable solo, no multiplayer required. Shares Action and Simulation with X3: Terran Conflict.
A procedural co-op space sandbox where players can build their own space ships out of dynamically scalable blocks. Fight epic space battles, explore, mine, trade, wage wars and build your own empire to save your galaxy from being torn apart by an unknown enemy.
- 7

Starpoint Gemini 2
Single-player alternative to X3: Terran Conflict — playable solo, no multiplayer required. Shares Action and Simulation with X3: Terran Conflict.
Captain your own space ship and roam the galaxy in 3D in this tactical space simulator with tons of RPG depth ! Space has never looked so inviting - but images can betray...It has been two years since the end of the second Gemini war, the situation in the wartorn system is further from resolution than ever.
- 8

Freespace 2
Single-player alternative to X3: Terran Conflict — playable solo, no multiplayer required. Shares Action with X3: Terran Conflict.
FreeSpace 2, the follow up to the classic Descent: FreeSpace – The Great War is ready to engage you in the second round. Follow the Grand Terran Vasudan Alliance further into the mysteries of the Shivans. Get your flight stick and hit the flight deck. The last time was just a warm up.
- 9

Stellaris
Single-player alternative to X3: Terran Conflict — playable solo, no multiplayer required. Shares Strategy and Simulation with X3: Terran Conflict.
Explore a galaxy full of wonders in this sci-fi grand strategy game from Paradox Development Studios. Interact with diverse alien races, discover strange new worlds with unexpected events and expand the reach of your empire. Each new adventure holds almost limitless possibilities.
- 10

Oxygen Not Included
Single-player alternative to X3: Terran Conflict — playable solo, no multiplayer required. Shares Simulation with X3: Terran Conflict.
Oxygen Not Included is a space-colony simulation game. Deep inside an alien space rock your industrious crew will need to master science, overcome strange new lifeforms, and harness incredible space tech to survive, and possibly, thrive.
- 11

X Rebirth
Single-player alternative to X3: Terran Conflict — playable solo, no multiplayer required. Shares Action and Simulation with X3: Terran Conflict.
In the distant future, the X universe faces a period of profound and irrevocable change. While the universe stumbles towards an uncertain future, countless adventures await as new enemies rise in search of power.
- 12

X Rebirth VR Edition
Single-player alternative to X3: Terran Conflict — playable solo, no multiplayer required. Shares Action and Simulation with X3: Terran Conflict.
X Rebirth VR Edition is tailored to be an immersive VR experience, based on X Rebirth: Home of Light. TRADE, FIGHT, BUILD, THINK in the X Universe - the biggest sandbox this side of the galaxy.
- 13

X: Tension
Single-player alternative to X3: Terran Conflict — playable solo, no multiplayer required. Shares Strategy and Simulation with X3: Terran Conflict.
X-Tension is the eagerly awaited expansion pack to X: Beyond the Frontier. The expansion is not limited by a linear plot line but makes use of new ways to expand your empire. You can now take part in missions that are offered to you throughout the game.