 He was an artist for Judges Guild for four months before working as a freelance artist for other publishers and trying to sell his RPG to them.Siembieda is the co-founder and president of Palladium Books.He founded the company in April 1981 to publish his fantasy role-playing game, but had insufficient funds to publish any books; the mother of Bill Loebs loaned Siembieda $1,500 to publish his first RPG book, "The Mechanoid Invasion" (1981).