Devil Survivor 2: The Extra World (デビルサバイバー2 THE EXTRA WORLD) is a social card battle game released through Mobage for mobile phones. It has been shut down as of March 31st, 2014.
- Japan: April 10, 2013
The Extra World is a social game using a free-to-play model, where the game itself is free, but some items and services must be purchased using real money. Prior to its release, it held a promotion for pre-registered users to receive an Io Nitta card. In July of 2013, it had reached over 100,000 registered players. It features most of the demons that appeared in the original Devil Survivor 2 and Devil Survivor 2 The Animation. In the game, players take on the role of humans who have stumbled into a parallel world being invaded by the Septentrion. Characters from both the game and animation series appear as characters within The Extra World.
The game is played like a card game, with characters, demons, and skills being different types of cards and players can organize decks to suit their needs. Demons belonging to the same race will be more powerful when used alongside other demons of that race.
|Record Breaker - The Animation - Thursday 23:54|
|Playable||Protagonist - Daichi Shijima - Io Nitta - Yuzuru Akie - Hinako Kujou - Keita Wakui - Airi Ban - Jungo Torii - Fumi Kanno - Makoto Sako - Otome Yanagiya - Yamato Hotsuin - Ronaldo Kuriki - Anguished One - Miyako Hotsuin|
|Non-Playable||Tico (Male / Female) - Dera-Deka - Koharu - Jungo's Cat - Polaris - Canopus|
|Tokyo||Tokyo Tower - Sunset Blvd - Diet Building - Akasaka Palace - Cine City Plaza - Sky Tower - Karamachi - Terminal - Bugeikan Arena - Central Gate - Sengakuji - Eikokuji|
|Osaka||Tsuutenkaku - Main Branch (JP's) - Festival Gate - Bickman - Ebisu Bridge - Sankyu Line|
|Nagoya||TV Tower - Planetarium - Gold Clock - Centering Park - Nagoya Branch (JP's) - Parking Garage|
|Other||Fukuoka Tenjin - Akasha Stratum - Stake Terminal - Providence|
|Terminology||Extra Turn Battle - Demon Tamers - Devil Auction - Fate System - JP's - Nicaea β ver. - Septentriones - Racial Skill - Auto Skill - Skill Crack - Demon Summoning App - Add-On - Dragon Stream - Terminal - Administrator - Akashic Record - Void - Triangulum - Astrolabe|
|Lists||Demons - Skills - Ailments - Titles (RB)- Translations|
|Songs||"Mugen no Sekai" - "Take Your Way" - "Be"|
|Publications||-Show Your Free Will- - The Animation Manga - Cetus's Prequel|
|Mobile Games||The Extra World|