Wait, "Where's Waldo" but in 3d, from first person perspective?

   6 Paparazzi - Start with a lousy camera, have to take
     photos which are graded for score.  Get better lenses
     and access to better hiding places as level ups.
     (This is like a FPS, but with no guns, and with 
     the enemy on a pre-determined route and with strict           
     time limits for each level)

   7 Tree in the Field - you start in a field.
     There's a tree.  You wander around.  You can
     climb the tree.  You can run. As you do certain
     things (start running, for example) a timer 
     starts with a recommendation ("Hey! How fast
     can you run round the field? / Climb the tree?
     / etc".  You find a magnifying glass.  You can
     look at bugs.  You can look at stones (and the
     fossils).  You can look at flowers.  The weather
     changes.  The day turns into night.  You find 
     a box.  When you find the box another prompt 
     pops up "Hey! This looks like a good place to
     keep your fossils!".  There is a rich and 
     diverse eco-system, with hooks into information
     about everything ("This is a 'Cowslip' (*Primula 
     veris*)" - but then more links if wanted.  Right 
     down to high level biology concepts.)  You can 
     race bugs against each other.  You find some
     seeds, and a trowel, and some rickety rackety 
     implements.

   7a Tree in the Field DLC - A Toolshed for the
      equipment / A mini greenhouse / etc etc.