  In this paper we analyze a dark matter model inspired by theories with extra
dimensions. The dark matter candidate corresponds to the first Kaluza-Klein
mode of a real scalar added to the Standard Model. The tower of new particles
enriches the calculation of the relic abundance. For large mass splitting, the
model converges to the predictions of the inert singlet dark matter model. For
nearly degenerate mass spectrum, coannihilations increase the cross-sections
used for direct and indirect dark matter searches. Moreover, the Kaluza-Klein
zero mode can mix with the SM higgs and further constraints can be applied.
