Accretion efficiency, ε, for multiple planetary masses in a disc where the gas is unperturbed by the planet and back-reaction is disabled. The results are taken from the repo package of Liu & Ormel (2018) (dashed lines); Eq. (33) of Lambrechts & Johansen (2014) (dotted lines); our simulation for a viscous disc with α = 10⁻³ (dots); and an inviscid disc (crosses). Note that the smallest two Stokes numbers are not plotted for the 1.51 M_⊕ planet because the accretion radius for these Stokes numbers is smaller than the cell width at our resolution.