The price of the wood is way cheaper than concrete. Since you are in a budget, wood is the material that you used to build your house. The finish product looks great but its quality is not so impressive. When you went inside your house, the first thing that you noticed is the door. Something is wrong with it. When you tried to twist the door knob, you confirmed that it doesn't work well. This is the thing that you have to solve right now. The good news is, there are items in your wood house that you can use to fix that. There are also clues that you can find so you have to move around. However, there are also puzzles that you will encounter so you need to look for hints that can help you out.