For those of you who want to do more with this project, there are still plenty of things you can do, especially after finishing the rest of this book. Here are some ideas to get your mind thinking:
Create the layout for your game project. Try to create interesting areas, which you can use for encounters later on in the game.
Place the props in interesting ways to break up repetition.
Instead of having box colliders for every tile in our game, it would be much more efficient to just create box colliders for all the walls that are together.
One of the major tools that level designers have is lighting. With it, we can create a mood or feeling in a place using the color, intensity, or even the lack of light. Players, in general, tend to follow lights, and you can use that as a level designer to help lead players along. Try using this in your level to lead players to the end of your level!
Currently, the doors do not do anything. Add a trigger to the door (box collider with Is Trigger toggled...