A platform assembly for attachment to a tree includes a platform and a post. The platform has an outer perimeter that bounds an interior structure of the platform that is horizontally-inboard of the outer perimeter. The outer perimeter includes a rear portion, a first wing portion coupled to the rear portion at a first wing portion rear corner and including an outboard-most portion of the outer perimeter in a first lateral direction, a front portion coupled to the first wing portion, and a second wing portion coupled to the front portion. The post is coupled to the platform and pivots relative to the platform about a pivot axis.