Subscriptions are available for purchase directly from the Autodesk Store , typically offered as monthly or annual plans.

In Autodesk 3ds Max 2023.3, modern licensing is primarily handled through your login rather than a traditional serial number or license key . However, the software still utilizes "Product Keys" for installation and identification within the Autodesk ecosystem. 3ds Max 2023 Product Key Details

You can acquire an official license through several channels depending on your needs: