since its release to the public in December 2012. Unlike other major Monte Carlo transport codes such as MCNP or Serpent, it is not export controlled. It has been used in labs including the Consortium for Advanced Simulation of LWRs and the ANL Center for Exascale Simulation of Advanced Reactors.

Features of OpenMC include the ability to perform fixed source, k-eigenvalue, and subcritical multiplication calculations on models