I like Cashflow because it actually teaches people about how to manage their finances. Then you should be able to play the Cashflow game for free.
If you don’t have an account on the site, go to the homepage and create one. Update – I didn’t find the link on the home page, but you can get to the game here. Just go to the Rich Dad site and click on Cashflow. After playing Cashflow 101 and 102 for a few years now, I was pleasantly surprised to find out that you can actually play for free, online.