Median black-hole mass as a function of stellar mass of subhalos in various EAGLE simulations at z = 0. Blue triangles, red diamonds, magenta squares, and orange hexagons show the relations from EAGLE-50, EAGLE-eAGN-dT, EAGLE-eAGN-Visc, and EAGLE-wAGN, respectively. At 11.6 < log(M_*/M_⊙) < 11.8, EAGLE-50, EAGLE-eAGN-dT, EAGLE-eAGN-Visc do not contain any subhalos in the mass bin; there is no subhalo with log(M_*/M_⊙) > 11.9 in EAGLE-wAGN. Error bars show the 1σ scatter in black-hole mass within each stellar mass bin.