Some free stock market games include Virtual Stock Exchange, Smartstocks, and Max's Investment World Stock Market Challenge. These games require signing up, but there is no fee to join. The sign in makes players able to keep track of their investments and stocks over a period of time.
These games are helpful for people who are unfamiliar with the stock market and would like to start investing money, but are unsure how to do so. Some of the games are also used to teach students. The sites offer various options, from private to group games. There are also options for both public and private group games.