For those that want to utilize it, ancient advanced technology is a narrative aspect to the Shadow World setting. Advanced technology was not just achieved by the Althan/Ka’ta’viir civilization in the 1st Era, but also utilized by several other notable cultures during the Interregnum: Taranian, Jinteni & Worim.
When we think of technology in fantasy role playing we often visualize laser pistols, laser swords, shield devices, power armor—objects that are just more powerful version of standard fantasy weapons (crowsbows, swords, armor etc). I posted up an older file on using technology in SW here, but the convenient fact is that although it’s tech, it can be handled easily within the RM fantasy magic rules. Laser Guns cast “Firebolts”; Lightsabers inflict Electricity, Fire or Plasma Crits; Anti-grav belts cast “Levitation”, etc.