What is the name of XXX's developer?
The Dark Spire
The Dark Spire (known as Genmu no Tō to Tsurugi no Okite (幻霧ノ塔ト剣ノ掟, The Tower of Mist and the Sword of Law) in Japan) is a role-playing game developed by Success for the Nintendo DS. It was released on May 22, 2008 in Japan and April 14, 2009 in North America which was published by Atlus.
Success