: Prepar3D is a commercial flight simulation platform developed by Lockheed Martin. It is a paid product and does not have a "free" Professional Plus version for general public download.
If you are looking to use Prepar3D, the only secure and legal way is through the official channels: : Prepar3D is a commercial flight simulation platform
: Avoid downloading software from "free download" sites matching this query, as they pose a high risk to your computer's security. : Prepar3D is a commercial flight simulation platform
The search results for "Δωρεάν λήψη Prepar3D (Professional Plus v4.0.23...)" (Free download Prepar3D) indicate that this specific version is primarily associated with and potential cybersecurity risks . Summary of Findings : Prepar3D is a commercial flight simulation platform
: You can purchase various licenses (Academic, Professional, or Developer) directly from the official Prepar3D website .