Single-player games like X4: Foundations
Below are 17 single-player Steam games similar to X4: Foundations, 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 X4: Foundations page.
Ranked picks
- 1
X3: Terran Conflict
Single-player alternative to X4: Foundations — playable solo, no multiplayer required. Shares Action and Strategy with X4: Foundations.
It is the year 2938. The long wished-for encounter of the X Universe and the Earth holds both joy and sorrow for the people. Despite flourishing trade, the clash of the diverse races, cultures and life forms creates new tensions, mistrust and open conflict that need to be overcome!
- 2
X2: The Threat
Single-player alternative to X4: Foundations — playable solo, no multiplayer required. Shares Strategy with X4: Foundations.
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.
- 3
X3: Reunion
Single-player alternative to X4: Foundations — playable solo, no multiplayer required. Shares Strategy with X4: Foundations.
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.
- 4
X: Beyond the Frontier
Single-player alternative to X4: Foundations — playable solo, no multiplayer required. Shares Strategy and Simulation with X4: Foundations.
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
Orbit Zero
Single-player alternative to X4: Foundations — playable solo, no multiplayer required. Shares Strategy and Simulation with X4: Foundations.
Create a Company, Build structures, Collect Resources, Make Investments and Speculate on Assets. Carefully manage your Workforce, Finances, Resources, Shareholders, BOD & Political Partnerships.
- 6
D.R.I.F.T.
Single-player alternative to X4: Foundations — playable solo, no multiplayer required. Shares Simulation with X4: Foundations.
A slow, system-driven space sim about contracts, reputation, and survival through careful decision-making, not combat or heroics.
- 7
Capital Command
Single-player alternative to X4: Foundations — playable solo, no multiplayer required. Shares Action and Strategy with X4: Foundations.
Take the helm of a state-of-the-art warship as you fight epic space battles in a sandbox campaign. Upgrade and customize your ship, master the art of maneuvering, and use a blend of tactical prowess and heavy firepower to overcome deadly threats.
- 8
X Rebirth
Single-player alternative to X4: Foundations — playable solo, no multiplayer required. Shares Action and Simulation with X4: Foundations.
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.
- 9
Elite Dangerous
Single-player alternative to X4: Foundations — playable solo, no multiplayer required. Shares Action and Strategy with X4: Foundations.
Take control of your own starship and blaze your trail in an ever-changing galaxy. Master the arts of combat, mining and trade or venture out into the unknown across a 1:1 scale universe.
- 10
No Man's Sky
Single-player alternative to X4: Foundations — playable solo, no multiplayer required. Shares Action with X4: Foundations.
No Man's Sky is a game about exploration and survival in an infinite procedurally generated universe.
- 11
Starvector
Single-player alternative to X4: Foundations — playable solo, no multiplayer required. Shares Action and Strategy with X4: Foundations.
Eat a snack while you watch an entire planet burn in your image.
- 12
Stellaris
Single-player alternative to X4: Foundations — playable solo, no multiplayer required. Shares Strategy and Simulation with X4: Foundations.
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.
- 13
Space Engineers
Single-player alternative to X4: Foundations — playable solo, no multiplayer required. Shares Action and Strategy with X4: Foundations.
Space Engineers is a sandbox engineering game where you design and build ships, stations, and planetary bases in a fully destructible environment. Explore planets and space, mine resources, survive hazards, and engage in combat alone or with friends in Creative or Survival modes.
- 14
Freelancer Life Simulator
Single-player alternative to X4: Foundations — playable solo, no multiplayer required. Shares Simulation with X4: Foundations.
Become one of the best freelancers, starting your way from scratch. Fulfill orders of varying difficulty.
- 15
Mount & Blade
Single-player alternative to X4: Foundations — playable solo, no multiplayer required.
Calradia is a land at war, offering great riches and even greater dangers to adventurers and mercenaries that flock to shed their blood on its soil. With courage and a strong sword, an unknown stranger can make a name as a warrior. Free-form sand-box gameplay.
- 16
X Rebirth VR Edition
Single-player alternative to X4: Foundations — playable solo, no multiplayer required. Shares Action and Simulation with X4: Foundations.
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.
- 17
X: Tension
Single-player alternative to X4: Foundations — playable solo, no multiplayer required. Shares Strategy and Simulation with X4: Foundations.
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.