Very nice game. I do have some thoughts though: I don't know why "gain mana" gives different amounts based on the item. On the one hand it makes me try them all out, but on the other i would really like to have a displayed number.
Cursed whetstone is still active after using it and needs to be clicked again to use anything else. I even lost a +lvl15 game because i accidently used it on an item instead of attacking with it. Kinda frustrating but could be a mechanic. As in: if you do cursed stuff, be carefull.
Now the thing that made me actually write this. Please make it so that you get a window when you want to leave and have items hovering over your backpack, which are not inside it.
Or only make leaving possible if you drag them outside the backpack, or have them slot inside the slots they hover over automatically upon leaving.
Over ~4h I have lost at least 4 high value items, that looked as if they where in my backpack, but were actually just hovering over a free place. (Starelixir->Shiny stuff) Yes I know the background-color is slightly different, but that is only usefull if I pay attention to it. And now I just lost a +lvl20 run, because I somehow managed to trow away my main weapon(wand), during opening a locked door, no less. In terms of infuriating stuff, this is by far the biggest offender each time it happens.
Anyway, very good game.