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X4: Foundations cover

X4: Foundations

A Simulator game by Egosoft, released in 2018

75/100🟡Healthy🥇Proton GoldLinuxPC (Microsoft Windows)

X4: FOUNDATIONS, the long awaited sequel in the successful X series, brings our most sophisticated universe SIMULATION ever. Fly every ship, EXPLORE space or manage an empire; TRADE, FIGHT, BUILD and THINK carefully, while you embark on an epic journey.

Single player

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X4: Foundations Download Size

We are currently tracking official storage requirements for X4: Foundations. Check back for updates on install size and SSD costs.

Is X4: Foundations Dead?

Live player count and server population analysis.

🟡Healthy
4.6KPlayers Online

There are currently 4,602 people playing X4: Foundations, placing it in the top 5% of active games. The community is alive and well.

Current Activity24h Peak: 5.5K
Estimated Match Wait: Standard (1-2 min)
Live Data from SteamAPI

Where is the X4: Foundations save file?

Manual backup locations for PC, Mac, and Linux.

Manual Backup Required
Copy
%USERPROFILE%\AppData\Local\X4Foundations\Saved\SaveGames

How to backup manually on Windows

  1. Press Win + R to open the Run dialog.
  2. Paste the path above and press Enter.
  3. Locate the save files (usually .sav, .json, or similar).
  4. Copy the entire folder to a backup location.
Copy
~/Library/Application Support/X4Foundations/Saves

How to backup manually on Mac

  1. Open Finder and press ⌘ + Shift + G.
  2. Paste the path above and click Go.
  3. Locate the save files in the folder.
  4. Duplicate the folder to create a backup.
Copy
~/.local/share/X4Foundations/Saves

How to backup manually on Linux

  1. Open a terminal and use cd to navigate to the path.
  2. Or use your file manager and press Ctrl + L to enter the path.
  3. Locate the save files (.sav, .json, or game-specific format).
  4. Copy the folder with cp -r or your file manager.
Source: PCGamingWiki ↗

Is X4: Foundations Steam Deck Compatible?

SteamOS and Linux Proton performance analysis.

Valve Official🚫Unsupported
Community Rating🥇 Proton Gold

Community Verdict: Playable!

Don't let the "Unsupported" tag fool you. While Valve hasn't officially verified X4: Foundations, ProtonDB users report it runs perfectly (Gold/Platinum rating). You may need to force a specific Proton version.

Confidence: High (Many Reports)
See 111 user configs ↗

Can I Run X4: Foundations?

System requirements not available for this title.

Is X4: Foundations Good?

Aggregated critic scores and player sentiment analysis.

75
Rated 75 out of 100
Generally Favorable1 Verified Reviews

The Verdict

Based on 1 critic reviews, X4: Foundations has received generally positive feedback. With a solid score of 75, it stands out as a strong entry in the simulator category, though it may have minor flaws.

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