The Tempest Add-on for Endless Legend - Emperor Edition has 16 achievements.
As Morgawr, control one region on at least 4 different continents.
Win a battle using an army containing each type of Fomorian warship.
Attack an army containing only land units with an army containing only submersible units.
Win a Shared Victory.
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 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.
Capture 50 Fomorian-controlled Fortresses across any number of playthroughs.
Ambush an enemy army from a fog-bank.
Complete 5 quests for the Fomorians in a single game.
Control every Fortress in the world.
Control each of the unique facilities across any number of playthroughs.
Complete your control of an ocean by trading for a Fortress.