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