
X4: Foundations
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.
- Released
- 2018
- Developer
- Egosoft
- Platforms
- 1 systems
- Critics
- Not scored
- Steam Deck
- verified
- Download
- 35 GB
What is X4: Foundations?
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.
Description as published by the developer on its own store page, read 30 August 2026. It is marketing copy, not our assessment.
The record
| First released | 29 November 2018 |
|---|---|
| Developer | Egosoft |
| Publisher | Egosoft |
| Platforms | PC |
| Genres | Simulation, Strategy |
| Languages | 14 supported |
Source. Catalogue facts from Wikidata , seeded TBA. Store data from Steam, read 30 August 2026.
How was X4: Foundations received?
Method. Player figures are Steam's own totals for the PC version, read 30 August 2026. The Metacritic score is the one Steam publishes on its store page and can lag the site itself. Neither is our opinion. We have not published a review of this game.
Accessibility
Seeing
- Color Alternatives
- Camera Comfort
Hearing
- Custom Volume Controls
- Stereo Sound
Input
- Full controller support
- Playable without Timed Input
Difficulty
- Save Anytime
Method. Features the publisher declared on its own store page. A declaration is a floor, not a review.
What does it support?
| Capability | Support |
|---|---|
| Controller | full support |
| Cloud saves | Yes |
| Cross-platform play | No |
| Mod support | Steam Workshop |
| Online play | Single-player only |
| In-game purchases | No |
| Steam Deck | verified |
| Download size | 35 GB |
| Add-on content | 15 DLC listed |
| Age gate | None |
Method. Read from the publisher's Steam listing on 30 August 2026. Describes the PC version. Console versions differ.
What does it cost?
Steam price in US dollars, read 30 August 2026. Prices move hourly and vary by region. Check the current price.
Games like X4: Foundations
24 games overlap with X4: Foundations on the tags Steam players applied to it, on genre, and on theme. The closest are Anno 2205, Dyson Sphere Program and Avorion.
Common questions about X4: Foundations
What platforms is X4: Foundations on?
X4: Foundations is available on PC. It first released in 2018.
How much does X4: Foundations cost?
$49.99 on Steam in the United States, read on 30 August 2026. Prices move often and vary by region, so check the store before buying.
Do players recommend X4: Foundations?
80% of 30,064 Steam reviews are positive, which Steam rates Mostly Positive. That is players rating it, not our review. We have not published a review of this game.
Does X4: Foundations work on Steam Deck?
Valve rates X4: Foundations as verified on the Steam Deck, from its own testing. That means it works out of the box with no configuration.
How big is the X4: Foundations download?
35 GB on PC, from the storage requirement on its Steam listing. Console versions differ.
Who made X4: Foundations?
X4: Foundations was developed by Egosoft and published by Egosoft.