This was really creative. I had a similar idea for our horror sim as well where during gameplay you could change the rooms but we never got to implementing it. I did run into a few issues though.
Just 2 things though. Or maybe I dint progress enough to unlock these features.
- Give the option to cancel placement of any object.
- Give the option to delete a placed object.
I also feel like having the player engagement meter visible during gameplay would help out a lot in know where exactly the player got bored. So you'll know which areas to fix and which to not.
Maybe this is my personal feeling, but I dont think that finishing the game with low health should be criteria here. You could calculate things like, time it takes to clear a particular group of enemies and then how much health was lost during that engagement.
Kudos to making such an interesting game.