On the Fast Track Server, players may also find the entrance to Rentus Base in Inggison Illusion Fortress in Inggison and Gelkmaros Fortress in Gelkmaros. The instance was originally introduced in 3.0 for players of level 59 and above in the Balaur Cavalry Base in Tiamaranta. After the addition of Upheaval, it underwent several drastic changes.