Community updates often require you to overwrite files in your main Stellaris directory. Ensure your base version is exactly v3.5.3 ; applying this to other versions will likely cause the game to crash.

💡 If you own the game on GOG, the safest way to update is through the official GOG client, which handles file validation and avoids the risk of corrupted third-party archives.

Because this is a .rar archive from a third-party source, you should verify its integrity before executing any files: