This ArchiCAD Add-On can convert 3D Studio (.3ds) files to ArchiCAD GDL objects
Accessories INT are a pack of goodies for Archicad.
RAL Colour System INT installs "RAL Colours" Add-On for ArchiCad 14.
Models and visualize the MEP systems in 3D and eliminate potential collisions.
Add-on that runs with ArchiCAD 15 and ArchiCAD STAR.