The NA62 experiment at the CERN SPS is currently taking data to measure the ultra-rare decay $K^+ \rightarrow \pi^+\nu\bar\nu$. Owing to the high beam-energy and a hermetic detector coverage, NA62 also has the opportunity to directly search for a plaethora of long-lived beyond-the Standard Model particles, such as Heavy Neutral Leptons, Axion-like Particles and Dark Photons. We will review the status of this searches and give prospects for future data taking at NA62.