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