Z Playonline:

Up until now, Ballista has been a one-way street. Players could only participate in nationally sponsored matches located in areas determined by the IRNC. But now, with the opening of a new area designed specially for Ballista, adventurers from all over the world can take the excitement into their own hands.

Some of the new area's features include:
*Area Reservation--reserve the area for you and your friends!
*Rule Adjustment--set various rules such as match length, level restrictions, and more!

While installation of the Chains of Promathia expansion pack is required to access the new Ballista area, progression in the missions is not necessary. However, a small amount of gil and/or Ballista Points may be requested before utilizing several of the services.