Average cumulative number of satellite sub-structures with total mass larger than M_SH and lower than 10¹³ h⁻¹ M_⊙ (left column) and for stellar masses larger than M_⋆, computed within an aperture of 30 physical kpc. We show data for the four 1 × R15 (cyan), 1 × RF18 (pink), 10 × B20 (black), and 1 × B20 (magenta) simulations in common between the four suites (i.e., D3, D6, D18, and D25 presented in Table 2). For each simulation we average data over three orthogonal projections. Shaded area represents standard deviation between different setups. Upper panels consider SHs within the virial radius and lower panels consider SHs with projected cluster-centric distance R <  0.15R_vir. Left panels show cumulative number of total SH mass M_SH, while right panels show cumulative mass of galaxy stellar mass associated with each SH. Observations are from the central region (R <  0.15R_vir) of cluster AS1063 presented in Bergamini et al. (2019) and Granata et al. (2022). Both simulations and observations have an average redshift of z ≈ 0.4.