Number of DM subhaloes and, for the full physics simulation, number of galaxies at z = 0 with DM mass M_S ≥ 2 × 10¹⁰ h⁻¹ M_⊙ within 2 h⁻¹ Mpc of the cluster centre. We define galaxies as objects that contain ≥10 star particles, that is stellar masses of M_* ≥ 1.9 × 10⁹ h^{− 1} M_⊙, assuming one generation of star particles is produced by a gas particle. We have highlighted values which significantly increase or decrease (by ≳ 25 per cent) going from DM→NR→FP.