In the late 2010s the Imperial Parliament initiated the Space Modernization Program. With this new edict from the Parliament, the Shazbotdom Imperial Space Administration began researching new rocket engines that would give more thrust with less energy expended and computer systems that would be built into the rockets to make the system reusable. In 2019, the first reusable rocket system was started, although it only had the first stage as reusable and it was a one core system that was designed to launch satellites into orbit. In 2019, the first prototypes for the Delta-class and Gamma-class boosters were first introduced to the current director of SISA, Dr. Gilbert Godwin.
