2D histogram of the number of planets as a function of [Fe/H] and planet mass using our combined stellar samples of alpha-poor, alpha-rich and halo stars. Only stars with high enough [Fe/H] form massive planets, while the distribution of host star [Fe/H] is more spread out for small planets, similar to the results of Buchhave et al. (2012) and Swastik et al. (2022). There is a clear valley in planet mass between 10 and 100 M_⊕ caused by the runaway accretion of gas.