To support the developers and ensure you have the most stable, secure, and up-to-date version, it is best to purchase the game through official channels.
Official versions of the game are usually handled through an automated launcher (like Steam), which doesn't require you to manually manage .zip files with build numbers. If you downloaded this from a third-party site, ensure you trust the source.
This number represents a specific update version of the game. Developers release these builds to fix bugs, balance gameplay, or add minor content. Safety and File Integrity