This is a Random Castle Generator based on this post. The generator can also be found here

Because the map generator uses graphics formed from only simple shapes and unicode characters, the generator works as a standalone html file, and is very easy to modify:

1. Download this webpage (Rightclick in a blank space and select "Save As" or hit ctrl-s or cmd-s)
2. Open the html file in a text editor.
3. Scroll down to the section labelled "School Info". This contains the variables that control the names of each room. In particular, there is a big list called "deckrooms", and another called "trumprooms".
4. Simply change the title, subtitle, and symbol for each room to reassign their meanings.
5. Then save the file and open it in a webbrowser to generate the castle map.

For example, the Lost Library looks like this in the code:

     {rank:"J", suit:"♦", hallway:0 , bgcolor:diamondColor, title:"Lost Library", subtitle:"(Secret)", symbol:"📜"},

Replace "Lost Libary" with "Swimming Pool", and the "📜" with "🏊", and then badabing, you've changed a room in the castle.