The Standard Model of Particle Physics is obviously not explaining everything, and supersymmetry is a very motivated candidate for a more complete description of the fundamental
particles and interactions. Still, decades of searches have failed to uncover the promised signals. In this seminar, I will review the tension between the arguments to expect light supersymmetric particles and their non-observation by the LHC experiments. I will present what we have learned from the ATLAS (and CMS) searches and the developments expected in the near future. How viable is
supersymmetry as a solution of issues like the nature of Dark Matter and the naturalness of the Higgs boson mass, and what will it take to have a definite answer to this question?