Adam got a new game, which is incredibly complicated.  Caverna is the big, more complicated brother of Agricola.  This is especially the case since all the upgrades were available at all times.  There were so many options, and it was hard to make any decisions.  On top of that there was a battle mechanic that lets the player choose from a list of options, making more decision points.  This is a good game, but way too complicated.