Short answers, pulled from the story.
Suikoden Tierkreis is a role-playing video game developed and published by Konami for the Nintendo DS, released as part of the Suikoden series. It launched in Japan in December 2008 and in Europe and North America in March 2009.
Suikoden Tierkreis was directed by Osamu Komuta, who had previously worked as a programmer on Suikoden IV and as a planner on Suikoden Tactics. The head writer was Kazuyoshi Tsugawa, who had also written Suikoden V.
Suikoden Tierkreis sold an estimated 40,000 copies on its first day in Japan and reached a lifetime total of approximately 174,000 copies in the region.
Famitsu Weekly gave Suikoden Tierkreis a score of 34 out of 40, based on four individual scores of nine, eight, nine, and eight. The magazine found the story fascinating and said no obvious flaws could be found in the game.
Both the opening theme, "Tears in the Sky," and the ending theme, "Tierkreis," are performed by Satomi Takasugi, a Japanese pop idol. The music team also included composers Norikaku Miura, Yoshino Aoki, Masaharu Iwata, and Kaori Komuro.
Suikoden Tierkreis follows an unnamed protagonist from Citro Village who assembles 108 heroes to oppose The Order of the One True Way, a cult-like organization led by an entity called The One King. The Order preaches that all fate is predetermined and seeks to control the world by eliminating the possibility of free will.