Curvy 3D 3.0 is an innovative sculpting program for Windows, ideal for first time 3D artists. Drawing is Fast: Curvy brings new speed to 3D modelling by letting you draw shapes straight into 3D. Create whole models with just a few strokes.
Most popular community and official game content for the past week.  (?)
What does popular mean?
It means the content you're seeing has been rated up more than it has been rated down for the given time period.