What is BricsCAD? BricsCAD is the modern CAD alternative. It is based on DWG, and it is compatible with everything you know. BricsCAD is available as a perpetual license that you can buy once and use forever. BricsCAD Classic If you create general 2D designs, the Classic license may be right for you. Compared to AutoCAD® LT, it also allows to view and edit 3D models and running Lisp routines.