[1] Lightner created additional game lines specifically for publication using the d20 System, including modern world military adventures such as Afghanistan (2002).
He has worked as a third-party developer for very large companies such as Mindscape, Take Two Interactive, Red Storm, MicroProse, and Segasoft.
He was the line developer for their Real-Life Roleplaying series covering d20 Afghanistan, d20 Columbia, d20 Somalia and the d20 FBI.
He also contributed heavily towards the flagship rpg product Holistic Design produced Fadings Suns, being the principal author of the military supplement Legions of the Empire.
[1] This new company specializes in cell phone games, and some of his credits with them include MLB Baseball 2004, NHL Hockey and Sega Snowboarding.