There is no legitimate "free download" for the Gold version. The official way to access Gold features is through a paid subscription on the official Simt Simulator website .
Includes a time-unlimited demo with selected bus types and two city lines.
I notice you're asking about a "SIMT MHD Gold Version" free download. However, I don't have any verified or legitimate information about software by that exact name. It's possible this refers to a specific industrial simulation tool, a medical device interface, or something else.
