Portal Games announces 3 Is A Magic Number The next Empire Pack expansion in the Imperial Settlers line. Gliwice, Poland – April 4, 2016. Today, Portal Games announced 3 Is A Magic Number, the next expansion for the award winning Imperial Settlers. Imperial Settlers: 3 is a magic Number is the second Empire Pack for Imperial Settlers from designer Ignacy Trzewiczek. 3 Is A Magic Number introduces all new mechanics and includes cards to supplement all five Factions currently available in Imperial Settlers. This expansion introduces a new rule: SET. This new ability allows players to score and trigger new effects each time they build 3 cards in a particular color, so called SET. With that rule drafting phase and choice of a right ...