Vale of Memories (追憶の狭間, Tsuioku no Hazama?, lit. Rift of Recollection) was a multi-realm Special Event in Final Fantasy Record Keeper. Its aim was to allow players to acquire and develop their characters in free-form. The open format of this event featured all unlockable characters previous to the late December 2015 update, plus both levels of Memory Crystals as well as other rare reward items. In the global release, this event ran from December 23, 2015 to January 1, 2016 with a claim period through January 7, 2016 (all times UTC).
In tandem with this event, a third Soul Break Celebration was launched, increasing the drop rate of many rare weapons.
Players entering Vale of Memories were presented with four Realms of three dungeons each, breaking up into difficulty ratings of 20, 50, and 110. Upon completion of all designated Realms, a fifth Realm exclusive to the event would be unlocked.
Completing the dungeons rewarded "Hero's Soul" items and "Memory Crystal Lode" items. The Hall of Rites that appeared with the event allowed the player to trade in these items to unlock certain heroes and their memory crystals. The Hall of Rites was later added as a permanent addition and made accessible any time.