  We discuss the parameter space of the Inert Doublet Model, a two Higgs
doublet model with a dark matter candidate. An extensive set of theoretical and
experimental constraints on this model is considered, where both collider as
well as astroparticle data limits, the latter in the form of dark matter relic
density as well as direct detection, are taken into account. We discuss the
effects of these constraints on the parameter space of the model. In
particular, we do not require the IDM to provide the full dark matter content
of the universe, which opens up additional regions in the parameter space
accessible at collider experiments. The combination of all constraints leads to
a relatively strong mass degeneracy in the dark scalar sector for masses < 200
GeV, and to a minimal scale ~ 45 GeV for the dark scalar masses. We also
observe a stringent mass hierarchy MH > MA. We propose benchmark points and
benchmark planes for dark scalar pair-production for the current LHC run being
in compliance with all theoretical as well as experimental bounds.
