Very cute and fun!
I keep losing my key tho, first time I must've put it in the sack then dumped it under the chest or behind a wall because I didn't know what I was doing.
The second time I must've dumped it and not noticed (the animation is subtle and as far as I've played there wasn't any sound)
Oh, as of writing this I took the game out of my downloads folder and re-launched it and now there is sound!
...
The character interactions remind me a lot of Banjo Kazooie!
I played some more with sound and it didn't take long until I dropped my key and bag through the floor or something in the hallway... they're totally gone.
I think it has a lot of potential and personally I like the limiting factor of the bag and even the scramble of dumping out all your treasure to find the key in the bottom (that might sound like sarcasm but I assure you it's not! ^_^), but atm I keep losing things and having to restart... and it'd be nice to be able to put stuff in it the bag while it's on your back and selectively take things out (even if you can't have it in your hand to use while holding the bag).
-Sometimes my character would shake their head at a lock even thought it was the same color as the key I was holding, sometimes moving would fix it, other times it just wouldn't work and I'd give up.
-There was a time where I was walking and the torch flew out of my hand across the sewer to the chest on the other side, also I'd talk to the chest from anywhere in the room if I wasn't interacting with an item. This happened again with a helmet in the armory.
-a couple chests would let me take stuff out of them before opening them.
-sometimes the interact icon would be enormous
So there's a bit of jank, but I did manage to finish it
I've got high hopes, good luck!