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