  The question of the nature of dark matter in the Universe remains one of the
most outstanding unsolved problems in basic science. One of the best motivated
particle physics candidates is the lightest supersymmetric particle, assumed to
be the lightest neutralino. We here describe DarkSUSY, an advanced numerical
FORTRAN package for supersymmetric dark matter calculations. With DarkSUSY one
can: (i) compute masses and compositions of various supersymmetric particles;
(ii) compute the relic density of the lightest neutralino, using accurate
methods which include the effects of resonances, pair production thresholds and
coannihilations; (iii) check accelerator bounds to identify allowed
supersymmetric models; and (iv) obtain neutralino detection rates for a variety
of detection methods, including direct detection and indirect detection through
antiprotons, gamma-rays and positrons from the Galactic halo or neutrinos from
the center of the Earth or the Sun.
