More Accessory Slots are available in the Crystarium as you advance through the game (last slot is unlocked at Stage 10). . Each accessory takes a certain amount of capacity, and you have a maximum capacity for accessories. If I remember correctly, the max capacity. Here's how to increase Accessory Slots in Crisis Core: Final Fantasy 7 Reunion. Accessory Slot may refer to: A mechanic in Final Fantasy XIII and Final Fantasy XIII; accessory slots are unlocked in the Crystarium system. The 4th Accessory slot for each character will be in whichever primary role hasn't already unlocked an extra Accessory slot. For a list of the unique/limited-. Accessory Slots can be extremely helpful for players. Fair warning, if you don't have any extra inventory slots, all extra items won from quest completion will be lost. As for what the limit is. For Final Fantasy XIII on the PlayStation 3, a GameFAQs message board topic titled "Max amount of accessory slots?". Recommended Accessory Setups: Early Setup: 1- Watchman's Amulet/Shrouding Talisman 2- HP Boost/Royal Armlet Keep Vidofnir equipped and dual.