Thanks soo much for your comments :)
The lighting system is pretty much what exists in Unreal, which is really cool. I modified the basic settings :)
Yeah, I made it so only duplicates spawned in areas you cannot reach - hopefully. We had to make a last-minute change because we realized there was a spawn at the top of the bookshelves. Also, there has been some bad clipping that I am still investigating.
The duplicates have a chance to duplicate; it is smaller than the original item, but they still do. I am considering options for players to modify these values to customize the difficulty.
Oh no, about the doors! It is on our to-do list to show the key. Also, the outside doors can't open and I just realized there is no way you would know which doors go to the outside and which don't.
Thank you!!!