Here is the full list of all 21 Catan Universe achievements.
Uncover 10 fog tiles in a game of Seafarer.
Colonize all islands in the Seafarer scenario "The four islands".
Move the pirate 5 times in a game of Seafarer.
Win a game without building a city.
Finish the tutorial of the base game.
Build 3 city walls in a game of Cities&Knights.
Create a guild or join one.
Reach level 10.
Use your first ticket.
Build a road that is compromised of at least 12 sections (including ships).
Win a game, where you have both the Longest Road as well as the Largest Army.
Reach level 5.
Reach level 2.
Add your first friend.
Change your looks with the avatar editor.
Reach level 20.
Reach karma level 4.
Win 5 games with the Seafarers expansion.
Win 5 games with the Cities&Knights expansion.
Play the progress card 'Wedding' 10 times in your games.
Finish the introductory game of 'The Duel'.