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