There is a PRICE game at http://www.html5pcode.com/a1yprice.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 maximize your profit by making a strategy for selecting a price (PROFIT MATRIX ROW). Your competitor also selects a price (PROFIT MATRIX COLUMN). Your competitor's strategy is to fix the value of the game over the long run. See if you can stop him. You change your strategy by changing the length of the yellow bars. This will changes the percentage of time you select each row. 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.