The High Isle Add-on for The Elder Scrolls Online has 4 achievements worth 180 gamerscore.
Complete quests, defeat bosses, and explore delves to become the Savior of High Isle.
Investigate the threat against High Isle and restore peace to the region.
Defeat Lylanar and Turlassil, the Reef Guardian, and Tideborn Taleria in Dreadsail Reef.
Complete quests, collect decks, and upgrade cards to complete.