There are three mobile games in the Ni no Kuni series published by Level-5. The first two were developed by Level-5 in partnership with mobile distribution companies, and were released around the original games in the main series, Dominion of the Dark Djinn and Wrath of the White Witch. The first, Ni no Kuni: Hotroit Stories, is a role-playing game set before the events of the main entries. It follows the story of Oliver and his friend Mark, and their attempts to construct a car. The first chapter was released in December 2010 through Level-5's Roid service. The second game, Ni no Kuni: Daibouken Monsters, is a social card role-playing game in which players collect cards and use them in battles, and use the abilities of characters who have been trapped in the cards. It was released in a partnership with the GREE mobile service in May 2012. The third game, Ni no Kuni: Cross Worlds, is a role-playing game developed by Netmarble, following a beta tester in a fictional virtual reality game. It was released in Japan, South Korea, and Taiwan in June 2021, and worldwide in May 2022.