(Open-source & lightweight)
Autodesk Revit Architecture 2013 is no longer available for direct download through standard Autodesk Free Trial channels, as the company typically supports only the current version and three previous years Official Access & Alternatives Autodesk Account: Autodesk Revit Architecture 2013 Free Download Full 13
If you need Revit without paying for a license or cannot afford the current subscription, consider these options: consider these options: