Rob your opponents 10 times in a single game.
End the game having never lost a City to the Barbarians while never building a Knight.
Second to None
Win a game with more than a 5-point advantage.
Brawn before Brains
Win a game where you always had more Knights than City Improvements.
Possess at least 3 harbors.
Build a road with 15 or more segments.
Reveal 10 fog-covered hexes in a single game.
Collect 20 resources in your hand.
Knights of the Round Table
Play 12 Knight Cards in a single game.
Place the Robber on a hex where he will affect no one.
Win a game by having the Largest Army and the Longest Road.
Cause 5 Barbarian attacks in a game.
Find 5 treasures in a single game.
Build a Mighty Knight, a City Wall, and a Metropolis and move the Merchant in a game.
Have three Cities with City Walls in a game.
Build all your settlements and cities next to a single type of resource and win.
Empire of Catan
Build settlements on all the islands in a Seafarers scenario.
Build a Settlement or a City at every number in a game.
Defender of the Realm
Become "Defender of Catan" five times in a single game.
Build your roads, settlements, and cities exclusively on coasts.
Rule them all
Play and defeat all the computer characters in custom games.
Interrupt the longest road belonging to an opponent.
Only trade with your fellow players at least 2:1 in your favor and win.
King of all Trades
Get all 3 Metropolises in a game.
Wood for Sheep
Trade 42 times 1 Lumber for 1 Wool in a game.
Villager by Conviction
Win a game without building a city.
Win a game without trading (fellow players AND bank).
Move the Robber to a player who currently holds no cards in his hand.