Disgaea 4: A Promise Unforgotten (魔界戦記ディスガイア4, Makai Senki Disugaia Fō?) is a 2011 tactical role-playing video game for the PlayStation 3 and the fourth in the Disgaea series by Nippon Ichi Software. The game tells the story of Valvatorez, a former tyrant leading a party to rebel against the president of the Netherworld. Originally released in February 2011 in Japan, the game was released in September that year in the U.S., with a European and Australian release in November. A western release of Vita rendition of Disgaea 4, subtitled A Promise Revisited, was released in North America and Europe in August 2014. The game takes place in a Netherworld, common in Disgaea titles, and similar to Disgaea 3: Absence of Justice, focuses itself on a specific theme. Nippon Ichi, apparently feeling that it had exhausted all the game systems a school setting can provide, made the story one of a more political nature. While aspects of Netherworld politics existed in previous game...