For outdated mechanics on this gameplay element, see Arena of Steel/Legacy

The Arena of Steel is a Power-Up Dungeon in Final Fantasy Record Keeper. The enemies in the dungeon drop Scarletite, Adamantite, and Gysahl Greens.

On Sundays, the dungeon is replaced with another Arena of Steel with the same name. These dungeons grant more materials than the ones available all week, and while they have the same rewards, the player can earn separate First Time and Mastery awards from them.

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