Crystarium
This section of the guide provides an overview of the Crystarium leveling system in Final Fantasy XIII. The “Crystarium Explanation/Overview” page provides a high level description of how the system works and how you can use it to upgrade and enhance your characters during a playthrough.
The second section, ”Crystariums: Development and Choosing Abilities” provides a more advanced explanation of where to spend your Crystogen Points (CP). And below that you will find a map of all six characters’s Crystariums to help you locate abilities.
Crystarium Overview/Explanation

A high level overview of the Crystarium system that provides a more in-depth explanation than the in-game tutorial provided in Chapter 3.
Crystarium: Development and Choosing Abilities

More advanced tactics for spending Crystogen Points (CP) in each character’s Crystarium including spending priorities and character’s strengths and weaknesses.
Character Crystariums
Use the links below to access a completely mapped out tree of each character’s Crystariums for all of their roles.