Before diving into the specific tools, it is important to understand why one cannot simply "Right Click > Save As" for larger projects.

With great power comes great responsibility. Archive.org explicitly asks users not to abuse their servers. A responsible downloader respects robots.txt , adds delays between requests, and never uses multi-threading to the point of a denial-of-service. Furthermore, you must respect copyright—just because something is downloadable doesn’t mean it’s in the public domain. The Archive hosts plenty of Creative Commons and public domain material; stick to that.

Downloading – A Basic Guide - Internet Archive Help Center

For those comfortable with text-based interfaces, Command Line Interface (CLI) tools are the most robust and efficient method for downloading from Archive.org. They offer granular control over what is downloaded and how.