There is a POLE game at http://www.html5pcode.com/a1ypoles.htm The game uses a p-code. The p-code was written in HTML5 JavaScript.
The home page is http://www.html5pcode.com
You are to minimize the cost of supporting a wire. There are 8 poles that can be used to support the wire. Each pole has a different height and span capability. The wire must have ground clearance. The starting and ending points are given. It will show, when the requirements are not met. This is a difficult problem to solve. You can view the DYNAMIC PROGRAMMING solution. There are 100 different games.
This game is written in a p-code. The p-code is executed by a p-code engine. If you click on PROGRAM in the RED STRIPE at the top, you can view the p-code programs. The p-code engine can execute the programs and it can edit the programs.There is a DATA option that allows you to see the program's data as it is being executed. There is a TRAIL option that allows you to execute the program in small steps. There is an RT, Real Time, option that allows you to change the program as it is executing. There are many YouTube videos that will show you how it works.