SketchUp, FreeCAD, Autodesk AutoCAD, SOLIDWORKS, Autodesk Fusion 360, ArchiCAD, LibreCAD, Autodesk Inventor, Catia, Autodesk Tinkercad, Designspark Mechanical, nanoCAD, Onshape, QCAD, OpenSCAD, SALOME, ImplicitCAD, VARKON, CMS IntelliCAD, HeeksCAD, Assetforge, GstarCAD, Linkage Mechanism Designer and Simulator, Draft it, BRL-CAD, BricsCAD, AutoQ3D CAD, SolveSpace, gCAD3D, KediCAD, BricsCAD Shape, DesignFreeQ, IronCAD, TouchCAD, Piglet Drawing Editor, Xenon™, Argon™, Punch! ViaCAD 2D/3D are some alternatives to Dune 3D.