Characteristic: dissipative interaction for rotating, rough, spherical particles; geometry elements: walls, cylinders, spheres, etc freely configurable; material properties of walls and particles freely configurable for an arbitray number of materials; object oriented, written in C++; full checkpointing supported; several compilation options: support of X11 graphics, reduction to 2D, debugging aids, etc.

Applications: simulation of granular media, silo filling and steady flow problems, sphere packings of mono- and polydisperse system