Photon attenuation properties of WO₃ based WO₃–B₂O₃ glass system have been simulated through the Phy–X/PSD program at some photon energies of 0.015–15 MeV. The mass attenuation coefficient (m_m) and effective atomic number (Z_eff) values of the selected glass system exhibited that the shielding performance of the gamma photons is related to the WO₃ content in glass, thus, the increasing of WO₃ content to glass improves the capacity of the glass system to attenuate more photons. Whereas effective electron density (N_el) value is opposite because of the vacant sites in glass structure of B₂O₃ are filled by WO₃ atoms which results in decreased electron density of selected glass sample. Further, total mass sopping power (TMSP) and projected range (PR) are calculated for proton particles (H⁺¹) and alpha particles (He⁺²). It may be deduced that W4 glass among the studied samples may be kept in view as a superior glass in terms of shielding for photon energy, proton and alpha particles.