FePSe3 is a layered van der Waals (vdW) crystal, and it has been predicted to have an Ising-type antiferromagnetic ordering from bulk to the monolayer limit. FePSe3 is a semiconductor with an optical band gap of 1.3 eV in the bulk limit, while its monolayer band gap value is an on-going research in the field. Another open question remains as to if the Neel temperature depends on the material thickness and the number of layers.