I am looking for a stock options simulation game that does not necessarily use real companies, but it must be able to be more or less "turn-based". By this, I mean that the valuations change at a certain time period or turn, and is NOT reflective of the CURRENT reality market conditions. I am trying to practice using the terms, strategies, and numbers so being bale to go through several iterations is important. Anyone know of a free site/product? Or relatively cheap product? I had looked into Darwin from Ameritrade but that works only on Win95.