This exact idea has been suggested before (I can't find a link at the moment)sorrow wrote:You know what might be a good idea is to put in a battle tower. When you enter the tower they have fighters and monster you can fight but as you go up the tower the monsters get harder and harder till you reach the top were you have to fight the doppleganger and if you are able to beat him then you get a grand prize. And every 10 floors you get a bed to rest along with 10 potions. You start with 10 potions (either major or bmps) any other items are stripped from you till you exit and apon exit you get them back. Also you may leave after every 10 floors.
It sounds like it would be too much of a hassle to code a tower like that, but i like your creativity.