Depends on your group
- Our take
- Only worth buying if you want to play solo or with two players. A BGG reviewer who bought it says it took one game to learn, calls it 'a worthy opponent that isn't easy to beat' and 'a more than solid opponent' and highly recommends it. BGG rates it 8.2 from 377 ratings. In the Merchants 'must-have' thread the Merchants co-designer suggests using the Automa as a third player in a 2-player game, and the original poster says he ordered the solo box to start playing Terra Mystica again. Nobody in the sources I read argues it is needed for a normal 3 to 5 player group.
- What you need first
- Just the base game