Love it so far. I got stuck after the cave part though. I collected the key, but neither the house to the north nor the house to the south will open for me.
If you collected the key after talking to Mr.Retro you're suppose to go back to where you saw the hole on the ground and go north. There's a locked block there for you to use the key. Always explore all areas 😉 ill put that in my notes to make some areas more noticeable.