  The increase of the centre-of-mass energy of the Large Hadron Collider (LHC)
to 13 TeV has opened up a new energy regime. Final states including
high-momentum multi-jet signatures often dominate beyond standard model
phenomena, in particular decay products of new heavy particles. While the
potential di-photon resonance currently receives a lot of attention, multi-jet
final states pose strong constraints on what physics model an observation could
actually be described with. In this presentation, the latest results of the
ATLAS and CMS collaborations in high transverse momentum multi-jet final states
are summarised. This includes searches for heavy resonances and new phenomena
in the di-jet mass spectrum, di-jet angular distributions, and the sum of
transverse momenta in different event topologies. Furthermore, results on
leptoquark pair production will be shown. A particular focus is laid on the
different background estimation methods.
