The European Space Propulsion System Simulation (ESPSS) is an ESA initiative to create a European simulation platform for spacecraft and launch vehicle propulsion systems under transient and steady conditions. The development of ESPSS commenced on 2004 and it has evolved ever since towards a standard in the space industry, academia, research institutes and agencies throughout Europe. Empresarios Agrupados Internacional (EAI) is the official distributor after prior approval from ESA, and the primary developer of the libraries.
