Establishments where Custodians are paid to create the clients wildest fantasies from sex, to status, to emotional situations, to comical events, historical events, to personal experiences, to anything and everything the client desires. The more talented the Custodian, the more real the illusions seem to be. Those Illusionariums are very expensive and only the wealthy could ever afford their rates. Illusionariums can be found in all major cities across Throne, with varying degrees of complexity depending on the Custodian.
Within The Grand Plaza the largest and most well-known Illusionarium conducts business. It is known as The Vermillion Illusionarium. The Vermillion employs some of the most talented illusionist Custodians in all of Throne.