Back when humanity was on Earth, populations were ruled over by countries. As it spread into the cosmos, corporations took charge of colonies, and soon they were the ruling class of human civilization. Their armies clash with each other, and other factions for dominance over the galaxy. They are the strongest and most powerful of all factions, bringing the most firepower and leadership to any conflict. Relic Worlds Showdown uses the Showdown miniatures rules by Pinnacle Entertainment to recreate skirmish battles in the Relic Worlds universe. In it, players find artifacts and other treasures left behind by long-lost alien civilizations. But the characters must be careful, as these alien races also left behind traps, and fierce monsters remain that will prove a deadly challenge to your faction. In these pages, you will find rules for turning your Showdown game into a Relic Worlds one, and the faction information for Corporate armies.