It's a small world, all the chests are empty, there's two piggy banks, one in each of the larger towers, and it's on a clean world, no bosses dead or chests looted.
The terrarium is loaded with pots on the lower levels and hopefully an enticing room for the Dryad.
Speaking of NPC's, the only ones that have shown up are the Nurse, she's in the floating castle, and the merchant, who's hanging out in the upper part of the grey tower.
It's just a spawling fortress you can use as your base and storage. It's on a clean 1.0.5 world.
Here's a pic:
