These new cards are available on their own in the Dominion: Update Pack

Cyclops is a natural leader and a brilliant tactician

and the nine towers clockwise from the castle

grow your brotherhood's fame

and then the remaining curved boards as shown

Mindbug: First Contact - New Servants citadel These new cards are availableWith the Add On Pack you get access to 28 cards: 24 additional creature cards (12 new creatures with duplicates) and 4 additional Mindbugs (required to play the 4 player mode). List of creature cards: Bugserker (x2) Count Draculeech (x2) Creep from the deep (x2) Ferret Pacifier (x2) Froblin Instigator (x2) Goreagle Alpha (x2) Hamster Lion (x2) Hungry Hungry Hamster (x2) Hyenix (x2) Majestic Manticore (x2) The Lurker (x2) Turf the Surfer (x2)