Dragon Quest IX - Hoshizora no Mamoribito (ドラゴンクエストIX 星空の守り人, lit. 'Dragon Quest IX: Guardians of the Stargazer Sky') is a role-playing video game developed by Level-5 and published by Square Enix for the Nintendo DS. It is the ninth installment of the popular Dragon Quest series and the first to be released for the Nintendo DS. The game was released in Japan on July 11, 2009 and worldwide in July 2010. The game follows the adventures of a celestrian, a celestial being who has descended to the realm of mortals in order to protect the world. The player takes control of the celestrian and embarks on a quest to save the world from an ancient evil. Along the way, they will explore various towns and dungeons, battle monsters, and complete various quests. The game features a unique multiplayer mode which allows players to team up to battle monsters and complete quests. During multiplayer mode, up to four players can join together to form a party. The game also features a wide variety of customization options, such as the ability to customize the appearance of the celestrian, the appearance of their party members, and the appearance of their equipment. Dragon Quest IX - Hoshizora no Mamoribito is an engaging and enjoyable role-playing game with a unique multiplayer mode and plenty of customization options. It is a must-have for any fan of the Dragon Quest series, and a must-play for any fan of RPGs.