STARFORGE: Towards a comprehensive numerical model of star cluster formation and feedback

We present STARFORGE (STAR FORmation in Gaseous Environments): a new numerical framework for 3D radiation MHD simulations of star formation that simultaneously follow the formation, accretion, evolution, and dynamics individual stars massive giant molecular clouds (GMCs) while accounting stellar feedback, including jets, radiative heating momentum, winds, supernovae. use GIZMO code with MFM mesh-free Lagrangian method, augmented algorithms gravity, timestepping, sink particle dynamics, feedback coupling. survey wide range parameters/prescriptions accretion find very small variations history IMF (except intentionally-unphysical variations). Modules mass-injecting (winds, SNe, jets) inject gas elements on-the-fly, eliminating lack resolution diffuse cavities otherwise inherent methods. The treatment uses GIZMO's transfer solver to track 5 frequency bands (IR, optical, NUV, FUV, ionizing), coupling direct emission dust pressure terms. demonstrate accurate solutions problems known similarity solutions, show our jet module is robust details, agrees well previous AMR simulations. can scale up ($>10^5 M_\odot $) GMCs on current supercomputers predicting ($\gtrsim 0.1 M_\odot$) IMF, permitting both high- low-mass cluster conditions.