I really liked the vibe of Aperture's observation halls from the last part of Portal so I figured I should make a map around them. In contrast to my previous maps, there's some slight linearity with very light puzzling being required to progress, but as always, feel free to just explore around. To install, copy the contents of the Enrichment Center Offices zip (A maps and a Materials folder) in your portal folder (It should also have maps and a Materials folder in there) , launch the game and choose the map from the Bonus Maps option on the main menu.