Final Fantasy Record Keeper

The player assembles a party of up to five members consisting of a combination of original characters such as the main character, Tyro (the default name is Tyro, but can be changed at the beginning), and various named and generic Final Fantasy characters. Using their party, the player visits the various worlds of the main Final Fantasy series, and progresses by completing Classic Dungeons re-created from the Record Realm (Final Fantasy game) that they are set in. While in a dungeon, the player cannot change party members, equipment, or set abilities. Each dungeon consists of one or more stages, which have one or more Active Time Battles. These battles use pixel art sprites against a 2D background, with sprites being taken from the 2D games in the series, reused from Final Fantasy All the Bravest, or being created fresh in a retro style. Final Fantasy Record Keeper has animated boss and summon sprites.

The battles in a stage are fought consecutively, with HP, status effects (including: Paralyze, Confuse, Sleep, Poison, Petrify, Silence, and Blind), and abilities used from each battle carrying over to the next. Once all battles in a stage are completed, the player is given a score for that stage—"Novice," "Expert," or "Champion" ("Normal," "Good," or "Excellent" in Japanese)—based on time taken, damage received, player characters dead, and Target Score(s) (スペシャルスコア, Supesharu Sukoa, lit. Special Score) for any bosses that were fought. If the player receives an Expert score for a stage, they are given 150% of the party's accumulated EXP (resulting in a battle worth 200 EXP being worth 300), while a Champion score for a stage awards a "Champion Bonus!!" of 200% EXP (a battle worth 200 EXP is instead worth 400). Battles can be fought manually or automatically, which can be changed throughout the battle. If auto-battle is being used, characters will only attack, they will not use Soul Break abilities, magic or defend.

Each stage has a Stamina (スタミナ, Sutamina) cost to challenge it. The player's Stamina gauge starts out at 30/30 points. Used Stamina points regenerate at a rate of one point per three minutes of real time. The player's maximum Stamina can be increased by collecting Stamina Shards (スタミナのかけら, Sutamina no Kakera), with every five shards increasing the maximum Stamina by one point, and in most cases, also fully restoring Stamina. If the amount of stamina currently used is less than the amount of stamina restored, then the amount of stamina will temporarily be increased above the maximum amount.

Once all stages within a dungeon have been completed, the player receives a rank of Bronze, Silver, or Gold based on the cumulative result of their scores for those stages. If Gold rank is achieved, then that dungeon is considered Mastered (マスター, Masutā, lit. Master). Special rewards are given on completion of dungeon. Rewards are divided into three categories: Completion Reward, Mastery Reward, and First Time Reward. The Completion Reward, which is usually a differing amount of Gil, is given every time a dungeon is completed and can be obtained multiple times. The Mastery Reward is given if a dungeon has been Mastered and the First Time Reward is given the first time a dungeon is completed. Both of these rewards consist of prizes such as Stamina Shards, Mythril, equipment, abilities, orbs, and new party members. Mastery Rewards and First Time Rewards can only be obtained once. Completing a dungeon also unlocks further realms and dungeons.

Players may revisit previously completed dungeons at any time and complete them again and again, paying the associated Stamina cost each time, in order to level grind and farm items. Furthermore, mastering a dungeon unlocks a higher level version of the same dungeon known as an Elite Dungeon. Elite Dungeons have much higher Stamina costs, but they yield higher level orbs and have their own separate completion and mastery rewards.

In addition to the normal realms that are always available, Events (イベント, Ibento) which are only available for a limited time also appear. Events usually reward players with characters unavailable by other means. Previous events have been re-run months later, providing another opportunity to acquire those characters. There is also a different daily event for each day of the week.

While the game is free to play, there is an in-game shop where real currency can be exchanged for Gems (モグコイン, Mogu Koin, lit. Mog Coin). Gems may in turn be used to pay for anything that Mythril can be used for. Conversion rates are as follows: 97 Gems per unit of currency in Japan, 100 Gems per US$0.99 or equivalent in other territories. As of August 30, 2022, the real-money shop for the Global release is closed pending that version's planned exit.