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Knights of the Crystals

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Knights of the Crystals
ナイツ オブ クリスタル
Naitsu Obu Kurisutaru
Developers Square Enix
Publishers Square Enix
Release dates
Mobile phones
Flag of Japan August 10, 2010


November 2, 2010
Genre Social
Game modes Single player
Ratings n/a
Platforms, Facebook

Knights of the Crystals was a social network game made by Square Enix for GREE-enabled mobile phones in Japan and Facebook internationally. Like Crystal Defenders, it featured character job classes of the Final Fantasy series (such as Paladin, Dragoons, etc.) as well as its aesthetics, even though it was not formally released as a Final Fantasy title.

The app went through several changes since its inception on Facebook. In the beginning, players collect treasures on different worlds to obtain a Spirit that enables access to Job classes. This was replaced with the Job Card System on March 7th, 2011. A Battle Arena was introduced two months later for players to engage each other and test their characters' strength. In August, the system introduced Final Fantasy Tactics-themed Job cards and Battle Arena. On December 20th, 2011, the service's closure was announced and all sales of its in-game coin system was suspended. The app discontinued on February 29th, 2012.


Kotc battle

A boss battle in Knights of the Crystals.

Knights of the Crystals had two modes: Fight and Quest. Fighting allowed the player to attack other players using Battle Power to earn EXP and Gold Pieces. Battle Power regenerated once every five minutes.

Questing allowed the player to use Action Power to partake in set quests, which earned the player EXP, Gold Pieces and occasionally items to assist the player in fighting. Action Power also regenerated once every five minutes, but could be fully recovered through the use of an ActionPower Pack given by a friend. Both Battle Power and Action Power fully recovered on each subsequent Level Up.

Players also had the choice of purchasing Square Enix Social Coins to buy stronger items in-game and to try their luck on Fortune Boxes, which held even stronger, rare items and the occasional legendary Job Class.


Main article: Knights of the Crystals/Classes

Players selected Classes/Jobs that provide ATK and DEF points to their player character, as well as extra class bonuses. At first, each Class was accessible when the player obtains a Spirit from collecting certain Treasures, and the player could change his or her Class every 24 hours.

Since an update, Jobs matching former Classes were accessible via the job box, and the active job could be changed at will.


Main article: Knights of the Crystals/Quests

Advancing the world map required Players to underwent Quests. A staple element of the Final Fantasy series, Quests required an amount of Action Power (AP) and pieces of equipment before they could be completed. There were also boss battles that involved the player and their social network friends.

References to Final FantasyEdit

There were multiple references to the Final Fantasy series in the game. The Job Classes included the series staples Warrior, Monk, White Mage, Black Mage, Dark Knight and Dragoon, among others. Some of the monsters fought during the quests looked very similar to their counterparts in the Final Fantasy series, such as the Lamia and the Imp. Also, some of the bosses summon the classic Final Fantasy summons Ifrit, Shiva and Bahamut.

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