A number of role-playing games have also adopted the idea, either using it as a separate realm within the multiverse (à la the Arcadia of the Dungeons & Dragons universe), or even using it as the central focus of an entire game system (as in White Wolf's game). In , Arcadia is presented as a hellish realm, where humans abducted by the True Fae are subject to unimaginable torment and torture, in sharp contrast to its usual utopian description. "Dragonhaven", a young adult fantasy novel by Robin McKinley, ends with the phrase "Arcadiae vias peregrinentur," which the author has stated roughly translates to "May they walk in Arcadia". According to the best-selling PC-game "The Longest Journey", Arcadia was divided from the primordial original world, and represents fantasy, dreams and magic, while our world, Stark, is the world of science and technology. In the game "BioShock", Arcadia is a level in which the protagonist has to navigate through an artificial forest. Arcadia was created by Dr. Julie Langford. This forest provides the oxygen for the rest of the underwater city of Rapture, and was used as a peaceful retreat for the citizens. Arcadia is the name of the world in the Sega Dreamcast game "Skies of Arcadia" in which the inhabitants live on floating islands and continents, and fly through the skies in airships. "Neo Arcadia" is the name given to the now center-of-the-world paradise city in the post-apocalyptic world of the "Mega Man Zero" series, as a place where humans and reploids live together side by side, though the Neo Arcadian government proves to be overbearing & ruthless in the fight against mavericks, going so far as to unjustly condemn innocent reploids to retirement(i.e. death). As such, they are the main antagonistic force throughout the majority of the "Zero" series.