  Magnetic skyrmions are topologically protected spin structures that naturally
emerge in magnetic materials. While a vast amount of effort has gone into the
study of their properties, their counterpart of opposite topological charge,
the antiskyrmion, has not received as much attention. We aim to close this gap
by deploying Monte Carlo simulations of spin-lattice systems in order to
investigate which interactions support antiskyrmions, as well as skyrmions of
Bloch and N\'eel type. We find that a suitable combination of ferromagnetic
exchange and Dzyaloshinskii-Moriya (DM) interactions is able to stabilize all
three types. Considering a three-dimensional spin lattice model, we provide a
finite-temperature phase diagram featuring a stable antiskyrmion lattice phase
for a large range of temperatures. In addition, we also shed light on the
creation and annihilation processes of these antiskyrmion tubes and study the
effects of the DM interaction strength on their typical size.
