  We present simplified models for the galactic center gamma-ray excess where
Dirac dark matter annihilates into pairs or triplets of on-shell bosonic
mediators to the Standard Model. These annihilation modes allow the dark matter
mass to be heavier than those of conventional effective theories for the
gamma-ray excess. Because the annihilation rate is set by the dark
matter--mediator coupling, the Standard Model coupling can be made
parametrically small to `hide' the dark sector by suppressing direct detection
and collider signals. We explore the viability of these models as a thermal
relic and on the role of the mediators for controlling the gamma-ray spectral
shape. We comment on ultraviolet completions for these simplified models and
novel options for Standard Model final states.
