It was announced during the game's one year anniversary offline event "Before One Year Fan Meeting" today that the game Chain Chronicle will get a short anime adaptation. More information will be announced at a later time.

Staff
Director: Takeshi Mori
Character Design: Hiromi Katou
Script: QUALIA
Studio: Soutsuu/Juumonji

Partial Cast
Akira Ishida
Ayane Sakura
Maaya Uchida
Kotori Koiwai
Junichi Yanagita
Shiori Mikami

Source: Dengeki Online


Update August 8
Additional cast members have been announced. The roles for the cast that were announced last time have been updated as well.

Main Character/Haruaki: Akira Ishida
Phiina/Touka: Ayane Sakura
Pilica/Nympha: Maaya Uchida
Rinse/Yuni: Kotori Koiwai
Velnar/Nucle: Junichi Yanagita
Reflet: Shiori Mikami
Kain: Mikako Komatsu
Maria/Aldora: Yuka Terasaki
Mysidia/Yugudo: Rina Satou
Kiki: Yuu Kobayashi
Eirenus: Natsuko Kuwatani
Greg/Dodogaru: Tetsu Inada
Yuriana: Yukiyo Fujii

It has been also announced that the first four episodes of the short anime series will be pre-streamed at five different places in Japan from September 6th to October 7th. There will be eight episodes with five minutes per episode.

Trailer: http://youtu.be/sK_jWzBnAnQ

Source: Official Twitter: 1, 2, 3, Event information

Chain Chronicle on MAL