# List of Square Enix companion books

Dozens of Square Enix companion books have been produced since 1998, when video game developer Square began to produce books that focused on artwork, developer interviews, and background information on the fictional worlds and characters in its games rather than on gameplay details. The first series of these books was the Perfect Works series, written and published by Square subsidiary DigiCube. They produced three books between 1998 and 1999 before the line was stopped in favor of the Ultimania (アルティマニア, Arutimania) series, a portmanteau of ultimate and mania. This series of books is written by Studio BentStuff, which had previously written game guides for Square for Final Fantasy VII. They were published by DigiCube until the company was dissolved in 2003. Square merged with video game publisher Enix on April 1, 2003, to form Square Enix, which resumed publication of the companion books.
Both the Perfect Works and Ultimania books have focused primarily on Square and Square Enix's role-playing video game franchises, such as the Final Fantasy and Kingdom Hearts series; over half of the more than 75 books are for games related to the Final Fantasy series. Sometimes, multiple books have been written per game or revised editions have been published years afterwards. One of the books, Final Fantasy IX Ultimania Online, was solely published online as part of an experiment by Square Enix with online content delivery; another for Final Fantasy XI was planned, but the idea was abandoned as unsuccessful and all subsequent books have been published traditionally.
The books are written and edited by Studio BentStuff; beginning with Final Fantasy VII Remake Ultimania in 2020, they switched to be credited to both Studio BentStuff and its parent company Digital Hearts, and since 2023 with Final Fantasy XVI Ultimania they have been credited solely to Digital Hearts. The Ultimania series had sold over 10 million books by July 2007, increasing to over 12 million copies sold as of 2017. The highest selling Square Enix companion books are Final Fantasy VIII Ultimania (over 2.2 million copies) and Final Fantasy X Scenario Ultimania (over 1 million copies). All of the books have been released solely in Japanese, but Dark Horse Books published English translations of the three-volume 2012 Final Fantasy 25th Memorial Ultimania as Final Fantasy Ultimania Archive in June 2018, and an English translation of the 2014 Kingdom Hearts Series Memorial Ultimania as Kingdom Hearts Ultimania: The Story Before Kingdom Hearts III in June 2021.

## Perfect Works

Perfect Works titles :
| Title | Game | Date | ISBN |
| Xenogears Perfect Works | Xenogears | October 10, 1998 | ISBN 978-4-9250-7532-9 |
| SaGa Frontier II Perfect Works | SaGa Frontier 2 | July 15, 1999 | ISBN 978-4-9250-7554-1 |
| Front Mission 3 Perfect Works | Front Mission 3 | November 20, 1999 | ISBN 978-4-9250-7566-4 |

## Ultimania

Ultimania titles :
| Title | Game | Date | ISBN |
| Final Fantasy VIII Ultimania | Final Fantasy VIII | March 31, 1999 | ISBN 978-4-9250-7549-7 |
| SaGa Frontier II Ultimania | SaGa Frontier 2 | June 18, 1999 | ISBN 978-4-9250-7553-4 |
| Seiken Densetsu: Legend of Mana Ultimania | Legend of Mana | September 30, 1999 | ISBN 978-4-9250-7564-0 |
| Chrono Cross Ultimania | Chrono Cross | January 27, 2000 | ISBN 978-4-9250-7573-2 |
| Vagrant Story Ultimania | Vagrant Story | April 13, 2000 | ISBN 978-4-9250-7575-6 |
| Final Fantasy IX Online Ultimania | Final Fantasy IX | December 29, 2000 | Internet-only |
| Final Fantasy X Scenario Ultimania | Final Fantasy X | September 14, 2001 | ISBN 978-4-8878-7010-9 |
| Final Fantasy X Battle Ultimania | Final Fantasy X | September 14, 2001 | ISBN 978-4-8878-7011-6 |
| Final Fantasy X Ultimania Ω | Final Fantasy X | January 31, 2002 | ISBN 978-4-8878-7021-5 |
| Final Fantasy IX Ultimania | Final Fantasy IX | February 28, 2002 | ISBN 978-4-8878-7025-3 |
| Kingdom Hearts Ultimania | Kingdom Hearts | June 13, 2002 | ISBN 978-4-8878-7042-0 |
| Kingdom Hearts Ultimania Revised Edition | Kingdom Hearts | January 9, 2003 | ISBN 978-4-8878-7090-1 |
| Final Fantasy X-2 Ultimania | Final Fantasy X-2 | May 31, 2003 | ISBN 978-4-8878-7126-7 |
| Final Fantasy X-2 Ultimania Ω | Final Fantasy X-2 | February 13, 2004 | ISBN 978-4-7575-1161-3 |
| Final Fantasy Crystal Chronicles World Ultimania | Final Fantasy Crystal Chronicles | March 19, 2004 | ISBN 978-4-7575-1162-0 |
| Final Fantasy X-2 Ultimania | Final Fantasy X-2 | April 16, 2004 | ISBN 978-4-7575-1205-4 |
| Final Fantasy X-2 International+Last Mission Ultimania | Final Fantasy X-2 International+Last Mission | April 16, 2004 | ISBN 978-4-7575-1163-7 |
| Final Fantasy X Scenario Ultimania | Final Fantasy X | May 28, 2004 | ISBN 978-4-7575-1215-3 |
| Final Fantasy X Battle Ultimania | Final Fantasy X | May 28, 2004 | ISBN 978-4-7575-1216-0 |
| Final Fantasy X Ultimania Ω | Final Fantasy X | May 28, 2004 | ISBN 978-4-7575-1214-6 |
| Final Fantasy VIII Ultimania | Final Fantasy VIII | June 25, 2004 | ISBN 978-4-7575-1243-6 |
| Final Fantasy IX Ultimania | Final Fantasy IX | June 25, 2004 | ISBN 978-4-7575-1244-3 |
| Chrono Cross Ultimania | Chrono Cross | July 30, 2004 | ISBN 978-4-7575-1249-8 |
| Seiken Densetsu: Legend of Mana | Legend of Mana | July 30, 2004 | ISBN 978-4-7575-1250-4 |
| Kingdom Hearts: Chain of Memories Ultimania | Kingdom Hearts: Chain of Memories | December 17, 2004 | ISBN 978-4-7575-1344-0 |
| Kingdom Hearts Ultimania Revised Edition | Kingdom Hearts | December 17, 2004 | ISBN 978-4-7575-1349-5 |
| Romancing SaGa: Minstrel Song Ultimania | Romancing SaGa: Minstrel Song | July 15, 2005 | ISBN 978-4-7575-1487-4 |
| Final Fantasy VII Ultimania Ω | Final Fantasy VII | September 9, 2005 | ISBN 978-4-7575-1520-8 |
| Kingdom Hearts Series Ultimania α ~Introduction of Kingdom Hearts II~ | Kingdom Hearts | December 9, 2005 | ISBN 978-4-7575-1597-0 |
| Kingdom Hearts II Ultimania | Kingdom Hearts II | February 23, 2006 | ISBN 978-4-7575-1621-2 |
| Final Fantasy XII Scenario Ultimania | Final Fantasy XII | June 16, 2006 | ISBN 978-4-7575-1696-0 |
| Final Fantasy XII Battle Ultimania | Final Fantasy XII | June 16, 2006 | ISBN 978-4-7575-1697-7 |
| SaGa Frontier II Ultimania | SaGa Frontier 2 | July 20, 2006 | ISBN 978-4-7575-1733-2 |
| Vagrant Story Ultimania | Vagrant Story | July 20, 2006 | ISBN 978-4-7575-1734-9 |
| Final Fantasy XII Ultimania Ω | Final Fantasy XII | November 24, 2006 | ISBN 978-4-7575-1821-6 |
| Kingdom Hearts II Final Mix+ Ultimania | Kingdom Hearts II Final Mix+ | May 2, 2007 | ISBN 978-4-7575-2013-4 |
| Final Fantasy XII: Revenant Wings Ultimania | Final Fantasy XII: Revenant Wings | June 14, 2007 | ISBN 978-4-7575-2024-0 |
| Final Fantasy XII International Zodiac Job System Ultimania | Final Fantasy XII International Zodiac Job System | September 6, 2007 | ISBN 978-4-7575-2100-1 |
| Final Fantasy VII 10th Anniversary Ultimania | Final Fantasy VII | September 13, 2007 | Part of the Final Fantasy VII Potion box set |
| Crisis Core: Final Fantasy VII Ultimania | Crisis Core: Final Fantasy VII | October 18, 2007 | ISBN 978-4-7575-2126-1 |
| Final Fantasy 20th Anniversary Ultimania File 1: Character | Final Fantasy series | January 31, 2008 | ISBN 978-4-7575-2206-0 |
| Final Fantasy 20th Anniversary Ultimania File 2: Scenario | Final Fantasy series | April 10, 2008 | ISBN 978-4-7575-2251-0 |
| Final Fantasy 20th Anniversary Ultimania File 3: Battle | Final Fantasy series | June 19, 2008 | ISBN 978-4-7575-2320-3 |
| Dissidia Final Fantasy Ultimania α | Dissidia Final Fantasy | December 4, 2008 | ISBN 978-4-7575-2466-8 |
| Chrono Trigger Ultimania | Chrono Trigger | January 20, 2009 | ISBN 978-4-7575-2469-9 |
| Dissidia Final Fantasy Ultimania | Dissidia Final Fantasy | January 29, 2009 | ISBN 978-4-7575-2488-0 |
| Final Fantasy VII 10th Anniversary Ultimania Revised Edition | Final Fantasy VII | April 16, 2009 | ISBN 978-4-7575-2560-3 |
| Final Fantasy XI Story Ultimania Ver.090409 | Final Fantasy XI | June 11, 2009 | ISBN 978-4-7575-2507-8 |
| Kingdom Hearts 358/2 Days Ultimania | Kingdom Hearts 358/2 Days | June 25, 2009 | ISBN 978-4-7575-2578-8 |
| Final Fantasy XIII Scenario Ultimania | Final Fantasy XIII | January 28, 2010 | ISBN 978-4-7575-2775-1 |
| Final Fantasy XIII Battle Ultimania | Final Fantasy XIII | January 28, 2010 | ISBN 978-4-7575-2776-8 |
| Kingdom Hearts Birth By Sleep Ultimania | Kingdom Hearts Birth by Sleep | March 25, 2010 | ISBN 978-4-7575-2788-1 |
| Final Fantasy XIII Ultimania Ω | Final Fantasy XIII | September 30, 2010 | ISBN 978-4-7575-2958-8 |
| Kingdom Hearts Re:coded Ultimania | Kingdom Hearts Re:coded | November 4, 2010 | ISBN 978-4-7575-3050-8 |
| Dissidia 012 Final Fantasy Ultimania Action Side | Dissidia 012 Final Fantasy | March 10, 2011 | ISBN 978-4-7575-3161-1 |
| Dissidia 012 Final Fantasy Ultimania RPG Side | Dissidia 012 Final Fantasy | March 31, 2011 | ISBN 978-4-7575-3162-8 |
| Final Fantasy Type-0 Ultimania | Final Fantasy Type-0 | November 30, 2011 | ISBN 978-4-7575-3432-2 |
| Final Fantasy XIII-2 Scenario Ultimania | Final Fantasy XIII-2 | January 31, 2012 | ISBN 978-4-7575-3496-4 |
| Final Fantasy XIII-2 Battle Ultimania | Final Fantasy XIII-2 | January 31, 2012 | ISBN 978-4-7575-3497-1 |
| Kingdom Hearts 3D [Dream Drop Distance] Ultimania | Kingdom Hearts 3D: Dream Drop Distance | May 1, 2012 | ISBN 978-4-7575-3615-9 |
| Final Fantasy XIII-2 Ultimania Ω | Final Fantasy XIII-2 | June 21, 2012 | ISBN 978-4-7575-3619-7 |
| Final Fantasy 25th Memorial Ultimania Volume 1 | Final Fantasy series | December 18, 2012 | ISBN 978-4-7575-3769-9 |
| Final Fantasy 25th Memorial Ultimania Volume 2 | Final Fantasy series | December 18, 2012 | ISBN 978-4-7575-3770-5 |
| Final Fantasy 25th Memorial Ultimania Volume 3 | Final Fantasy series | December 18, 2012 | ISBN 978-4-7575-3771-2 |
| Lightning Returns: Final Fantasy XIII Ultimania | Lightning Returns: Final Fantasy XIII | December 19, 2013 | ISBN 978-4-7575-4158-0 |
| Final Fantasy X HD Remaster Ultimania | Final Fantasy X/X-2 HD Remaster | December 26, 2013 | ISBN 978-4-7575-4159-7 |
| Final Fantasy X-2 HD Remaster Ultimania | Final Fantasy X/X-2 HD Remaster | January 30, 2014 | ISBN 978-4-7575-4160-3 |
| Kingdom Hearts Series Memorial Ultimania | Kingdom Hearts series | October 2, 2014 | ISBN 978-4-7575-4384-3 |
| Biohazard Revelations 2 Ultimania | Resident Evil: Revelations 2 | March 26, 2015 | ISBN 978-4-7575-4600-4 |
| Final Fantasy XV Ultimania - Scenario Side- | Final Fantasy XV | December 28, 2016 | ISBN 978-4-7575-5214-2 |
| Final Fantasy XV Ultimania - Battle + Map Side - | Final Fantasy XV | December 28, 2016 | ISBN 978-4-7575-5215-9 |
| Final Fantasy XII The Zodiac Age Ultimania | Final Fantasy XII: The Zodiac Age | July 13, 2017 | ISBN 978-4-7575-5339-2 |
| Dissidia Final Fantasy NT Ultimania | Dissidia Final Fantasy NT | January 11, 2018 | ISBN 978-4-7575-5615-7 |
| Another Eden: The Cat Beyond Time and Space World Ultimania | Another Eden | July 31, 2018 | ISBN 978-4-7575-5800-7 |
| Kingdom Hearts III Ultimania | Kingdom Hearts III | February 28, 2019 | ISBN 978-4-7575-6001-7 |
| Final Fantasy VII Remake Ultimania | Final Fantasy VII Remake | April 28, 2020 | ISBN 978-4-7575-6586-9 |
| Final Fantasy VII Remake Material Ultimania | Final Fantasy VII Remake | October 29, 2020 | ISBN 978-4-7575-6869-3 |
| Final Fantasy VII Remake Material Ultimania Plus | Final Fantasy VII Remake | July 25, 2021 | ISBN 978-4-7575-7347-5 |
| Final Fantasy I-VI Pixel Remaster Memorial Ultimania | Final Fantasy I-VI Pixel Remasters | April 20, 2023 | ISBN 978-4-7575-8707-6 |
| Final Fantasy XVI Ultimania | Final Fantasy XVI | September 7, 2023 | Included with Final Fantasy I-VI Pixel Remaster FF35th Anniversary Limited Edition |
| Final Fantasy VII Rebirth Ultimania | Final Fantasy VII Rebirth | April 12, 2024 | ISBN 978-4-7575-9134-9 |
| Final Fantasy VII Rebirth Material Ultimania | Final Fantasy VII Rebirth | December 27, 2024 | |