As in many RPGs, combat is at the core of Final Fantasy XI. There are several different ways one can enjoy the battle.
- Fighting normal monsters for experience, items, or skill improvement.
- Burning Circle Notorious Monster fights, a battle within a controlled arena with special conditions such as level and party size limits.
- Ballista, combat against other players to further national conquest.
- Besieged, an instanced event in which players and NPCs alike defend the city of Al Zahbi against invading beastmen forces.