CODEX (a well-known scene group that officially ceased operations in February 2022).
If you are looking for this file on the open web, be extremely cautious:
The v1.4.2 update was one of the final significant patches for the game, addressing AI behavior and stability issues. Users on the Steam Community noted that this version was actively tested to fix "alien needs fulfillment behavior AI," which was a major complaint among players at the time.
Since CODEX has retired, many sites hosting "CODEX" releases are now mirrors or fakes that may bundle malware with the .rar file.
This specific package contains the files necessary to update a previously installed pirated version of the game to version 1.4.2, typically including a "crack" to bypass Digital Rights Management (DRM). Version History Context