Market has 9 categories:
- Travel Points
- Treasure Chests
Everything here is sold for gold, except for XP. XP in the market is sold for Painite.
To list anything on the market it costs 100 gems and you can have maximum 25 total items up on the market at any given time. This includes all categories. Maximum price 5 billion gold total.
You can only sell XP when you're at your maximum level.