It's OK but a little annoying
It was fun for a while as I was able to figure it all out, but then I had to go to the walkthrough. It's pretty dumb that you have to get the key to open the door of the shed, when the shed obviously has rotting broken boards on one side you could just crawl through, or you could just shoot the lock, or use the pickaxe on the lock or on the wood around the lock, etc. You should really be able to use the pickaxe on anything wooden instead of using any key.