Aleron was a smog-covered planet in Tapani sector's Freeworlds Territory. It had domed canyon cities and underground cities. Its crust and mantle were rich in valuable minerals and ores. Discovered during the Twelve Kingdoms Era of the Tapani Empire, the world was colonized by Humans from Gilliana. Aleron was the headquarters of Aleron Trade Cooperative, Macander Heavy Ores, and LIN Corporation. With their hold of three major corporations, Aleron was given a voting member of the League of Tapani Freeworlds.