Complex sentence: The scientists were not discouraged by their failure with Him or the death of Hamilton, and so created another superhumanly powerful humanoid they called "Paragon" (who would later become known as Her and Kismet).
Split into simpler sentences: The scientists were not discouraged by their failure with Him or the death of Hamilton. So they created another superhumanly powerful humanoid they called "Paragon" (who would later become known as Her and Kismet).