- The X Universe Digital Artbook 2018: Enjoy the concept art behind the X universe.
- X Novel: Nopileos by Helge Kautz as English and German eBook.
- Digital Soundtrack: Download the music, including exclusive versions of the trailer and teaser music in highest possible quality.
- Access to the first two expansions for X4: Foundations.
- First expansion planned to be released in 2019
- Second expansion planned to be released later
The bonus content will be placed in your X4 installation folder: ...Steam\SteamApps\common\X4 Foundations\Bonus Content