On December 13, 2006, a Square Enix representative informed Tokyo reporters that the already announced ' would be joined by other games in a new subseries known as the "Ivalice Alliance". ' is a PlayStation Portable and iOS port of the original "Final Fantasy Tactics" game. "" is a Nintendo DS sequel to "Final Fantasy Tactics Advance", albeit set in the actual Ivalice world and not an artificial illusory world, unlike its predecessor. Another title in the collection, "Final Fantasy XII International Zodiac Job System", was revealed on May 8, 2007.