The Tempest Add-on for Endless Legend - Emperor Edition has 16 achievements.
Control each of the unique facilities across any number of playthroughs.
As Morgawr, win the game without ever building or purchasing land units (except for Settler units).
Win a game with the Morgawr.
As Morgawr, control one region on at least 4 different continents.
As Morgawr, control an ocean which borders 4 or more land regions you control.
As Morgawr, use a Black Spot to prompt the elimination of an empire by a third party.
Win a Shared Victory.
Capture 50 Fomorian-controlled Fortresses across any number of playthroughs.
Complete your control of an ocean by trading for a Fortress.
Attack an army containing only land units with an army containing only submersible units.
Control every Fortress in the world.
Win a battle using an army containing each type of Fomorian warship.
Ambush an enemy army from a fog-bank.
Complete 5 quests for the Fomorians in a single game.