Over the years, he worked at several studios, both defunct (like Sentient Software and 989 Studios) and currently active (EA, Activision) on titles such as Zork and Altered Destiny. Tass Times in Tone Town, which he made alongside Interplay's Rebecca Heineman and Muffy McClung Berlyn (his wife). Tass Times in Tone Town, which he made alongside Interplay's Rebecca Heineman and Muffy McClung Berlyn (his wife)