EverQuest: Underfoot is the sixteenth expansion of EverQuest. This expansion explores the story of Brell Serilis and his maze of underground caverns, lava pits, and gigantic chasms. In his temple at the top of the tallest volcano, Brell spends his days making new races. Most he destroys, returning them to their primal clay. Some he makes into his servants. But recently things have changed. There is a growing unrest and there is a hidden power that wishes to topple Brell. It is into this troubled realm that you will enter to discover the truth and solve the mystery behind the unrest in the Underfoot.
This expansion added 12 new zones, access to the Extended Target Window, Achievements, and includes access to all of the previous expansions.