During the 20th century’s twilight, Mark did freelance illustration, concept work, and indiscriminate odd jobs in both traditional and digital media for virtually any rogue that crossed his palm with silver, including TOR, ACE, Doubleday Sci-Fi Book Club, ILM, Buena Vista Software, Bulletproof Software, Realtime Associates, Virgin mastertronic, and many others. During this period, he also produced a fair amount of unpublished concept work for products that were either never released, or never put into production at all.