Explore the fascinating world of extreme plasma simulations in neutron star mergers through this illuminating talk delivered at the 2023 North American Einstein Toolkit School and Workshop. Delve into the complex physics and computational challenges involved in modeling these cosmic phenomena as Elias Most from the Center For Computational Relativity and Gravitation shares cutting-edge research and insights. Gain a deeper understanding of the intricate processes at play during these cataclysmic events and learn about the advanced techniques used to simulate and study the behavior of extreme plasmas in these extreme astrophysical environments.