I'm not going to lie. I was terrible at Gravitar: Recharged, and I continued to be terrible at it no matter what I did. But if you're the sort of person who craves a genuinely punishing experience and doesn't mind putting in the hours, you absolutely need to give it a try.
Screenshots
Logout
Are you sure you want to logout?
Create Auction
If you auction an item, it will no longer show in the regular shop section of the site.