Mastercam 2018 is several generations old (current versions are 2024/2025).

Mastercam is a popular computer-aided manufacturing (CAM) software used for CNC machining, milling, and lathe operations. Mastercam 2018 is one of the older versions, which might still be useful for specific projects or for those who don't require the latest features.

If you just need to make parts and don't strictly need Mastercam specifically:

Your “free” Mastercam turns your computer into a zombie in a DDoS botnet. While you design a 3D pocket toolpath, your machine is attacking a government website in another country. Your ISP notices the traffic and cancels your service.