Steam app 392160 · updated 25 Oct 2026, 15:17 UTC
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.
718 hourly samples, with the daily peak drawn over them. Weekends are shaded.
105 months, August 2017 to November 2026. The highest number of people in the game at once, each month, on a time axis -- a gap in the record stays a gap.
The highest number of people in the game at once, each month. Four, because four is as far back as the source keeps anything finer than one figure a month.
23 days, each one the highest figure that day. The source keeps no hourly detail this far back. Weekends are shaded.
30 days, each one the highest figure that day. The source keeps no hourly detail this far back. Weekends are shaded.
31 days as the curve, each the highest figure that day. Behind it, 567 hourly samples from 08 Oct, which is as far back as the source keeps every hour. Weekends are shaded.
7 days as the curve, each the highest figure that day. Behind it, 151 hourly samples. Each dip is a night. Weekends are shaded.
| Language | Full audio |
|---|---|
| English | ● |
| German | ● |
| French | ● |
| Italian | |
| Simplified Chinese | |
| Portuguese - Brazil | ● |
| Spanish - Spain | |
| Traditional Chinese | |
| Russian | ● |
| Korean | |
| Japanese | |
| Spanish - Latin America | |
| Polish | |
| Czech |
A blank audio cell means full audio was not marked in the returned language list.
🪐 A Universe of Endless Possibilities
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X4 Empire Update (9.00) Launch Trailer
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🏛️ X4 Diplomacy Update (8.00) Launch Trailer
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What Is X4? 🪐 A Fresh Look At The Ultimate UNIVERSE IN A BOX!
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7.50 Flight Model Update + Hyperion Pack Release Trailer
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7.00 Public Beta Trailer ✨ Discover What's New!
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X4: Kingdom End (DLC) Launch Trailer
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X4: Tides of Avarice (DLC) Launch Trailer
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X4: Cradle of Humanity (DLC) Launch Trailer
Watch on Steam172 achievements in total.
50 developer announcements, Aug 2025 to Oct 2026 · times in UTC
In the latest episode of Inside Egosoft, Joey sits down with Michael and Ketraar to discuss their work on X4: Foundations’ economic simulation. Michael has worked at Egosoft for 22 years across a wide range of responsibilities, but…
belgorayIn October 2001, X: Beyond the Frontier graced the cover disc of Computer Bild Spiele (CBS), one of Germany's top-selling print games magazines at the time. Appearing on the cover disc provided enormous visibility, bringing the game into…
belgorayIn the new episode of Inside Egosoft, Joey chats with Lino, Egosoft’s Art Director and 14-year veteran at the studio. Alongside his own artistic creations, Lino oversees the art team and the overall artistic direction of the X Universe.In…
belgorayIn the latest episode of Inside Egosoft, Joey sits down with Alexei Zakharov, composer and sound designer for Egosoft since 2003. Alexei is responsible for most of what you’ll hear in X4: Foundations, from the atmospheric music in your…
belgorayIn our latest episode of Inside Egosoft, Joey sits down with Matthias, one of Egosoft's longest-serving developers, to discuss almost two decades of working on the X Universe.Though his title could be described as “gameplay programmer,”…
TomonorX4: Foundations is joining the Triple-i Initiative offline events in Shanghai!TO ALL PLAYERS:We are pleased to announce that X4: Foundations, invited by the Triple-i Initiative, will offer offline trial play at two exhibitions in Shanghai…
belgorayGreetings,Feedback from our players has always been a guiding light for our work on the X Universe. We are constantly discussing reviews, forum posts, and comments internally, and your feedback during our open betas is invaluable as we…
TomonorAs we continue to develop and expand X4: Foundations, we are constantly looking for ways to improve the game's proprietary engine and overall performance. To keep pushing the boundaries of what our engine can do, we are preparing to upgrade…
belgorayGreetings, We’re excited to announce that X4: Foundations is featured as a Steam Daily Deal today, making for a great opportunity for new players to dive into our living universe at a discounted price. This sale comes just days after we…
TomonorWe're very excited to announce that the X4: Foundations "Empire Update" (9.00) has officially launched! This free major update includes new features and sweeping reworks that improve how you interact with your empire: militarily…
belgorayWe're excited to announce that the X4: Foundations Empire Update (9.00) is set to launch on June 10, 2026! The Empire Update touches on every aspect of empires within X4 - the balance of ships and their loadouts, how commands may be issued…
belgorayRelease Candidate 4 is now available. Thank you, everyone, for your continued testing and for providing feedback! The full list of changes can be found below. How Do I Take Part in the Public Beta? Every player who owns X4: Foundations has…
TomonorRelease Candidate 3 is now available. Thank you, everyone, for your continued testing and for providing feedback! The full list of changes can be found below. How Do I Take Part in the Public Beta? Every player who owns X4: Foundations has…
TomonorWe’re popping in with Release Candidate 2, which addresses some critical issues. How Do I Take Part in the Public Beta? Every player who owns X4: Foundations has the opportunity to download the new 9.00 Public Beta version. In order to…
TomonorWe've reached Release Candidate state for the 9.00 update. Thank you all for your testing and invaluable feedback so far. The finish line is in sight, but we still need your help with the final stretch. How Do I Take Part in the Public…
TomonorWe’re very excited to share a new episode of the Inside Egosoft podcast. Join our new host, Joey, as he speaks with members of the Egosoft team about their work and ideas. In this episode, he sits down with Helge Kautz, our loremaster.…
belgoray9.00 Public Beta 11 is now available! Please find the full changelog below. Thank you for your continued support and feedback during this testing phase. How Do I Take Part in the Public Beta? Every player who owns X4: Foundations has the…
Tomonor9.00 Public Beta 10 is now available! Please find the full changelog below. Thank you for your continued support and feedback during this testing phase. How Do I Take Part in the Public Beta? Every player who owns X4: Foundations has the…
Tomonor9.00 Public Beta 9 is now available! Please find the full changelog below. Thank you for your continued support and feedback during this testing phase. How Do I Take Part in the Public Beta? Every player who owns X4: Foundations has the…
Tomonor9.00 Public Beta 8 is now available! Please find the full changelog below. Thank you for your continued support and feedback during this testing phase. How Do I Take Part in the Public Beta? Every player who owns X4: Foundations has the…
belgoray9.00 Public Beta 7 is now available! Please find the full changelog below. Additionally, alongside these improvements, we are introducing a new "FPS Style" input Profile, which you can also test. If you would like to participate in this…
Tomonor9.00 Public Beta 6 is now available! Please find the full changelog below. Thank you for your continued support and feedback during this testing phase. How Do I Take Part in the Public Beta? Every player who owns X4: Foundations has the…
belgorayWe're just popping in briefly with a small hotfix for Beta 5. How Do I Take Part in the Public Beta? Every player who owns X4: Foundations has the opportunity to download the new 9.00 Public Beta version. In order to ensure that beta…
Patch notes9.00 Public Beta 5 is now available! Please find the full changelog below. Thank you for your continued support and feedback during this testing phase. How Do I Take Part in the Public Beta? Every player who owns X4: Foundations has the…
Tomonor9.00 Public Beta 4 is now available! Please find the full changelog below. Thank you for your continued support and feedback during this testing phase. How Do I Take Part in the Public Beta? Every player who owns X4: Foundations has the…
belgoray9.00 Public Beta 3 is now available! Please find the full changelog below. Thank you for your continued support and feedback during this testing phase. How Do I Take Part in the Public Beta? Every player who owns X4: Foundations has the…
belgoray9.00 Public Beta 2 is now available! Please find the full changelog below. Thank you for your continued support and feedback during this testing phase. How Do I Take Part in the Public Beta? Every player who owns X4: Foundations has the…
belgorayWe're thrilled to kick off the Public Beta for the X4: Foundations "Empire Update" (9.00)! This free major update includes numerous features and reworks that influence how you engage with combat, strategy, and the economy. The Empire Update…
belgorayWe're thrilled to announce that we'll be making our first appearance at PAX East in Boston! From March 26 to March 29, you can find us at Booth #14085 in Hall B. Come hang out with the Egosoft team, play X4: Foundations on our HOTAS demo…
belgorayUPDATE: These changes have now been applied. Please take a moment to review the instructions in the original news post and follow them carefully. We're preparing some changes in order to support cross-platform cloud saves between Windows…
belgorayWe’re starting the year with a hotfix aimed at resolving a reported memory leak. The update is now available on Steam. If you haven’t seen it yet, be sure to check out our Xmas Xlog video, where Bernd talks about some of our plans for 2026…
Patch notesAs 2025 comes to a close, we're celebrating a very special milestone: seven years of X4: Foundations! In a brand-new XLOG video, Egosoft founder and Managing Director Bernd Lehahn sits down to look back at another full year of updates and…
belgorayWelcome to the ultimate space sandbox experience with X4: Foundations! In this updated overview video from earlier this year, we dive into what makes X4 truly unique among space games - especially interesting to our new visitors discovering…
belgorayCaptains, the 2025 Steam Awards nominations have begun - and we'd be truly honoured if you'd consider nominating X4: Foundations for the "Labor of Love" category! Valve themselves describe the category as follows: "This game has been out…
belgorayThe X4: Envoy Pack introduced a new stealth-ready frigate, jointly developed by the Argon Federation and the Teladi Ministry of Finance. Beyond its advanced features - the Cloak stance, faction camouflage protocols and a fully explorable…
belgorayAt Egosoft, we’ve spent decades building the X universe, a living sandbox where ships, stations, and entire economies evolve dynamically. Our friends at ROCKFISH Games, meanwhile, have carved out a stellar reputation for fast-paced…
belgorayHello everyone, we’ve released the third hotfix addressing an issue with beam turrets. In case you missed it: >> Now Available: Diplomacy Update (8.00) & X4: Envoy Pack https://store.steampowered.com/bundle/49933/X4_Ship_Pack_Bundle/ X4…
TomonorHello everyone, we’ve released the second hotfix addressing several issues found since the Diplomacy Update. In case you missed it: >> Now Available: Diplomacy Update (8.00) & X4: Envoy Pack…
TomonorHello everyone, we’re releasing a public beta for another hotfix to address several issues that have been discovered since the release of the Diplomacy Update. How Do I Take Part in the Public Beta? Every player who owns X4: Foundations has…
Patch notesWelcome to the ultimate space sandbox experience with X4: Foundations! In this updated 2025 overview video, we dive into what makes X4 truly unique among space games - especially for our new visitors discovering X4 thanks to the current…
belgorayHello everyone, we’ve released a hotfix addressing several issues found since the Diplomacy Update. In case you missed it: >> Now Available: Diplomacy Update (8.00) & X4: Envoy Pack https://store.steampowered.com/app/3778100/X4_Envoy_Pack…
Patch notesWe’re excited to invite you to a Reddit AMA (Ask Me Anything) with EGOSOFT Founder and Managing Director Bernd Lehahn. {STEAM_CLAN_IMAGE}/30511222/fb2207e5a1ff9d178ad774c69c9b6186fd6ba5f6.jpg 📅 When: Monday, September 22, 2025 🕕 Time: 18:00…
belgorayHello everyone, we’re releasing a public beta for a hotfix to address several issues that have been discovered since the release of the Diplomacy Update. How Do I Take Part in the Public Beta? Every player who owns X4: Foundations has the…
Patch notesWe're excited to announce the release of the Diplomacy Update (8.00) for X4: Foundations, alongside our brand-new DLC, the X4: Envoy Pack! The Diplomacy Update is a major free update for all players of X4: Foundations, bringing significant…
belgorayBuild across galaxies with the ultimate duo in space-faring ingenuity! Whether you're building a Dyson Sphere that envelops a star or forging a fleet empire that spans the galaxies, the infinite cosmos carries humanity’s ultimate dream.…
belgorayThe wait is over! The Diplomacy Update and the X4: Envoy Pack will launch on September 10, 2025! {STEAM_CLAN_IMAGE}/30511222/f1cf8c6fcd3790872d82e3b253be47a664b031e9.png How Do I Take Part in the Public Beta? Every player who owns X4…
TomonorThe wait is over! The Diplomacy Update and the X4: Envoy Pack will launch on September 10, 2025! {STEAM_CLAN_IMAGE}/30511222/f1cf8c6fcd3790872d82e3b253be47a664b031e9.png How Do I Take Part in the Public Beta? Every player who owns X4…
Tomonorhttps://store.steampowered.com/app/3781050/X4_Envoy_Pack_Soundtrack/ The X4: Envoy Pack Soundtrack includes 10 tracks created by long-time X series composer Alexei Zakharov and newcomer Alexei Galygin. This collection moves between calm…
belgorayHow Do I Take Part in the Public Beta? Every player who owns X4: Foundations has the opportunity to download the new 8.00 Public Beta version. In order to ensure that beta participants are aware of the risks and rules involved, we ask all…
TomonorHow Do I Take Part in the Public Beta? Every player who owns X4: Foundations has the opportunity to download the new 8.00 Public Beta version. In order to ensure that beta participants are aware of the risks and rules involved, we ask all…
belgorayEverything Steam lists as add-on content for this game, newest first. Prices are left out on purpose: the store answers this page in one currency and it is not the reader's.
| Name | Platforms | Released |
|---|---|---|
| X4: Envoy Pack | WindowsLinux | 10 Sep 2025 |
| X4: Envoy Pack Soundtrack | WindowsmacOSLinux | 02 Sep 2025 |
| X4: Hyperion Pack | WindowsLinux | 20 Feb 2025 |
| X4: Hyperion Pack Soundtrack | WindowsmacOSLinux | 11 Feb 2025 |
| X4: Timelines | WindowsLinux | 20 Jun 2024 |
| X4: Timelines Soundtrack | WindowsmacOSLinux | 14 Jun 2024 |
| X4: Kingdom End | WindowsLinux | 12 Apr 2023 |
| X4: Kingdom End Soundtrack | WindowsmacOSLinux | 29 Mar 2023 |
| X4: Tides of Avarice | WindowsLinux | 14 Mar 2022 |
| X4: Tides of Avarice Soundtrack | WindowsmacOSLinux | 25 Feb 2022 |
| X4: Cradle of Humanity | WindowsLinux | 16 Mar 2021 |
| X4: Cradle of Humanity Soundtrack | WindowsmacOSLinux | 12 Mar 2021 |
| X4: Split Vendetta | WindowsLinux | 31 Mar 2020 |
| X4: Split Vendetta Soundtrack | WindowsmacOSLinux | 30 Mar 2020 |
| X4: Foundations Soundtrack | WindowsmacOSLinux | 11 Feb 2020 |
What Steam runs, and with what. Straight from the app configuration.
| Description | Executable | Arguments | Platform | |
|---|---|---|---|---|
| Launch | X4.exe | windows | ||
| Launch | testandlaunch | linux |
The folders Steam Cloud syncs. The root is a token Steam uses for a location on your own machine, not a path this page can know.
| Root | Folder | Files |
|---|---|---|
WinMyDocuments | Egosoft/X4/{Steam3AccountID} | inputmap*.xml |
WinMyDocuments | Egosoft/X4/{Steam3AccountID} | uidata.xml |
WinMyDocuments | Egosoft/X4/{Steam3AccountID}/save | *.xml |
WinMyDocuments | Egosoft/X4/{Steam3AccountID}/save | *.xml.gz |
WinMyDocuments | Egosoft/X4/{Steam3AccountID} | constructionplans.xml |
WinMyDocuments | Egosoft/X4/{Steam3AccountID} | loadouts.xml |
WinMyDocuments | Egosoft/X4/{Steam3AccountID} | userdata.xml |
LinuxHome | .config/EgoSoft/X4/{Steam3AccountID} | inputmap*.xml |
LinuxHome | .config/EgoSoft/X4/{Steam3AccountID} | uidata.xml |
LinuxHome | .config/EgoSoft/X4/{Steam3AccountID}/save | *.xml |
LinuxHome | .config/EgoSoft/X4/{Steam3AccountID}/save | *.xml.gz |
LinuxHome | .config/EgoSoft/X4/{Steam3AccountID} | constructionplans.xml |
LinuxHome | .config/EgoSoft/X4/{Steam3AccountID} | loadouts.xml |
LinuxHome | .config/EgoSoft/X4/{Steam3AccountID} | userdata.xml |
WinMyDocuments | Egosoft/X4/{Steam3AccountID}/constructionplan | *.xml |
WinMyDocuments | Egosoft/X4/{Steam3AccountID}/loadout | *.xml |
LinuxHome | .config/EgoSoft/X4/{Steam3AccountID}/constructionplan | *.xml |
LinuxHome | .config/EgoSoft/X4/{Steam3AccountID}/loadout | *.xml |
WinMyDocuments | Egosoft/X4/{Steam3AccountID} | userdata_signed.xml |
LinuxHome | .config/EgoSoft/X4/{Steam3AccountID} | userdata_signed.xml |
WinMyDocuments | Egosoft/X4/{Steam3AccountID}/customgamestart | *.xml |
LinuxHome | .config/EgoSoft/X4/{Steam3AccountID}/customgamestart | *.xml |
WinMyDocuments | Egosoft/X4/{Steam3AccountID} | ventureconfig.xml |
LinuxHome | .config/EgoSoft/X4/{Steam3AccountID} | ventureconfig.xml |
WinMyDocuments | Egosoft/X4/{Steam3AccountID} | colors.xml |
LinuxHome | .config/EgoSoft/X4/{Steam3AccountID} | colors.xml |
WinMyDocuments | Egosoft/X4/{Steam3AccountID} | inputfeedback.xml |
LinuxHome | .config/EgoSoft/X4/{Steam3AccountID} | inputfeedback.xml |
WinMyDocuments | Egosoft/X4/{Steam3AccountID}/colorprofile | *.xml |
LinuxHome | .config/EgoSoft/X4/{Steam3AccountID}/colorprofile | *.xml |
It runs on public data and somebody's spare time.
https://paypal.me/KintaroPalPaythanks-kintaro@outlook.com0x4d559C765AA8BFe336E36d5b76024926767eD38dTJtctWU9uetJaTBoSybd1RErW7n9duTKVG