I have added primitive item functionality to the game using a technique derived from the same system of plug-in code as the entity AI. Potions (the only item implemented so far) can be picked up, occupy an item slot, and can be used to restore health up to a variable maximum. Using them removes them from your inventory.
I have also begun sketching rough versions of the UI I want for the game, which will feature an ASCII map as roguelike tradition dictates, but will also feature a graphical menu and character screen. I hope to be able to commission an artist to make it relatively cheaply, since I’m broke and this is a fan project. I think it will add considerably to the look of the game, however.