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.
Every time you enter this floor, you'll start sleeping and will go to the nightmare of the "Deep Sleep" games, this is the most scary floor ever, you may die here... good thing that you can pass through it with an elevator. *phew*
This floor represents the 1st of the 7 sins...it is the Circle of Avidity. Gold is found in abundance here. There are coins and gold bars beyond counting here, scattered on the floor, forming entire mountains. To take even one coin is to be condemned however, for that massive treasure harbors a terrible curse. Anyone who attempts to seize even the slightest part of that treasure is bound to spend the rest of eternity counting the gold coins, forever drifting into madness...
This floor is completely missing. It still exists but it's in a ghostlike state. Thus any attempts at getting onto this floor would result in you falling to your doom.
This floor is full of invisible objects and people. Furthermore, you are made invisible upon entering this floor. Should you attempt to leave, you will need to find the invisible elevator doors along with the buttons (which are also invisible).
Everything in this floor is poisonous. Do not touch anything lest you get infected...Even the air is not breathable without protection and can even get to you through your skin...a hazmat suit that covers the whole body is required...if the various noxious insects flying around do not puncture it, you'll be safe
Everything in this floor gets the appearance and physics of Minecraft, this floor also has a full stack (64 ) of diamond ores somewhere, but no one found it... yet