By 1982 the market was moving to graphic adventures. Infocom was interested in producing them, that year proposing to Penguin Software that Antonio Antiochia, author of its "Transylvania", provide artwork. Within Infocom the game designers tended to oppose graphics, while marketing and business employees supported using them for the company to remain competitive. The partnership negotiations failed, in part because of the difficulty of adding graphics to the Z-machine, and Infocom instead began a series of advertisements mocking graphical games as "graffiti" compared to the human imagination. The marketing campaign was very successful, and Infocom's success led to other companies like Broderbund and Electronic Arts also releasing their own text games.