Supersymmetry and Exotica at ATLAS

This proceedings present a number of searches for supersymmetric particles as well as particles from exotic models. The searches are conducted with the ATLAS experiment at the LHC analysing data taken in 2011 and 2012. Various final states with different numbers of leptons, jets and a varying amount of missing transverse momentum are investigated. Inclusive as well as exclusive searches are performed. Since no new deviations from the Standard Model have been observed, lower limits on the masses of the particles in question are derived. Depending on the particular models, mass limits exist from about $0.1\,{\rm TeV}$ up to $10\,{\rm TeV}$