Also a costly and risky way to go broke. Fortunate is he whose first speculation results in loss. It is true that a man who does this is a fool. I have only proved that a man who does anything else is an even bigger fool.
Games are entertainment.
Games are short duration and thus simulate trading, not investing. Game money is not real money. Game rules, risks and returns are not market rules, risks and returns. Games don't include limit orders, commissions, margin costs, income taxes on dividends and capital gains, or the opportunity cost of player's time. Games benefit sponsors.