This combination of extraction and creation makes the Catalog Tool the absolute foundation for all modding, enabling you to view, learn from, and modify the game.
The is an essential utility for modders of X Rebirth and X4: Foundations , used to manage the compressed file formats that house the games' assets. Originally released as part of the official X Tools (formerly "X Rebirth Tools"), version 1.10 was a significant update that expanded the tool's versatility across the franchise. Key Features of Version 1.10 X Rebirth Catalog Tool 1.10
Egosoft packages X Rebirth game assets—including textures, models, scripts, and audio—into compressed .cat (catalog) and .dat (data) file pairs. This combination of extraction and creation makes the
Version 1.10 stabilized many of the early versioning issues, ensuring that and compression headers remained consistent with the game's updates. Without this tool, the "open" nature of X Rebirth would be inaccessible, as the community would be unable to fix bugs, overhaul the UI, or add new ships to the galaxy. Key Features of Version 1
Extracting allows you to view the game's XML scripts and assets. Steam Community Catalog Tool (GUI) from the X Tools launcher. Import Catalogs and navigate to your game's installation folder. Select the catalog you want to open (e.g.,
Unpack .cat files into loose folders or pack loose files back into a functional .cat / .dat pair.
However, this compression creates a barrier for modders. You cannot simply go into your game's folder to edit a script or copy a ship model; the files are locked away. The X Rebirth Catalog Tool bridges this gap by allowing you to: