Simple! Easy! The rules are simple – if you had a skyscraper floor, what would you put in it? Why would it be special? Etc! 1st person does Floor 1, next Floor 2, and so on!
Post your posts like this:
Floor #
This floor is home to bla bla bla. Why? Because yadda yadda yadda yadda yadda. Also, it has yabber yabber yabber yabber yabber. It also has yeah yeah yeah in it. Nah nah nah.
Floor 1
This floor looks like an ordinary hotel lobby by day. At night the laws of physics become rather malleable.
This floor is an endless corridor. No matter how much you walk, you will never reach the end. The end can only be reached if you find a secret button which will show the end for a minute.
This floor has a collection of doors to other worlds. Unfortunately, you can't walk through them because you can never escape the skyscraper. Things can be brought to you though...
This floor has a trumpet that needs to be played for a minute long to unlock Floor 924. The music played doesn't matter, however, if you try to play it normally, your lungs will be ripped from your body and expelled out of the trumpet.
This floor is a fully functioning town. However, the physics here are reminiscent of Goat Simulator or any other games with ridiculous physics. Any deaths that occur here will respawn you at the hospital.