  We explore the early evolution of flame ignition and spreading on the surface
of a neutron star in three-dimensions, in the context of X-ray bursts. We look
at the nucleosynthesis and morphology of the burning front and compare to
two-dimensional axisymmetric simulations to gauge how important a full
three-dimensional treatment of the flame is for the early dynamics. Finally, we
discuss the progress toward full-star resolved flame simulations.
