From PsyHelp

• Is a standard Add-on.

How to get it

• That Guy Ben granted accounts created before February 7th, 2007 a free Basement
• "Study" an Basement Blueprint with required components

Uses

• Starts with 1 Level
• 1 level holds 100 items, regardless of item size
• Items in the Basement:
  • Lose comments permanently
  • Have no hourly effect
  • Will not show up as a profile item
  • Can only be stored if they can be put in the Market Square (i.e. items must be "Brand-New", etc.)
• A Deed to 1000 Units can be traded at Real Estate for another floor