League of American Investors

Learn to invest in the stock market using a stock market simulator game.
http://investorsleague.com/index.html

Stock-Trak

Stock market game where you simulate managing a portfolio of stocks, bonds, mutual funds, options and futures. Test an investment idea, learn about the financial markets, or develop a track record.
http://www.stocktrak.com/

Commodity Trader

A classic trading and resource allocation game. Requires javascript; best with Netscape4, IE4, or Opera 3.20
http://members.tripod.com/~leikam/trader/

Virtual Stock Exchange

Stock market game and message boards. Trade stocks and funds in a collaborative environment. Run your own competition or join others.
http://www.virtualstockexchange.com/

Fantasy Stock Market

Free, fun and educational investment game. Trade stocks and mutual funds with $100,000 in fantasy money. Portfolios are tracked and ranked for monthly prizes. Perfect for the beginning investor or professionals.
http://www.fantasystockmarket.com

Foresight Exchange

A notional stock market where you buy shares betting on the outcome of future events.
http://www.ideosphere.com/fx/

Market Player

Financial tools and stock market contest simulation on the Internet.
http://www.marketplayer.com/

Blogshares

Fantasy blog stock game, where blog value is based on hits and links.
http://www.blogshares.com/

Virtual Trader at City Comment

UK online stock market simulation game. Invest a virtual £100,000.
http://www.citycomment.co.uk/

PolitiStock - the Political Stock Exchange

Trade stock in politicians in this investment game.
http://www.politistock.com

The Great Game

Equity trading on the London Exchange. Free prizes for the best performing portfolio each month. Direct links for research and analysis.
http://www.thegreatgame.com/

WarTrade

Real-time stock market trading game, using fictitious companies.
http://www.WarTrade.com

Xodds.com

Offers fixed-odds financial betting with either virtual or real accounts.
http://www.xodds.com

U.S Idea Futures Exchange

A free web-based futures market.
http://www.usifex.com

Xycoon Online

Virtual stock exchange. Free simulated trading.
http://www.xycoon.com

WallStreet -Challenge

Interactive online trading contest with up to $100,000 available to be won.
http://www.wallstreet-challenge.com

Athletic Stock Exchange

An open market where you can buy and sell the shares of real life athletes from and to other players.
http://www.athleticstockexchange.com

BestTrader

Stock advise game where your results are listed for others to see.
http://www.besttrader.net/index.php?_lang=us

IndexTrade.com

Trade from $1 per point on world's first trading site for global equity indices, bonds, selected commodities and currencies.
http://www.IndexTrade.com

Wall Street Raider

Windows based investing game. Includes information and download links.
http://www.roninsoft.com

Stockk.com Investment Challenge

Asian investment simulation game. Sign up and compete with 5,600 experts in the Asian stock markets.
http://games.stockk.com/

Market Bucks

Free stock picking tournament site.
http://www.marketbucks.com

BullBearings

A free UK based investment website featuring fantasy stocks and virtual financial spread betting.
http://www.bullbearings.co.uk/

TradersGame.com

Option market simulation. Derivatives pricing calculators for treasury managers, hedgers and traders.
http://tradersgame.com/

Paper-Trade.com

Realistic paper trading and marked-to-the-market simulations suited for total beginners, professionals and systems developers.
http://www.paper-trade.com/

MockTrading.com

Free mock commodity trading.
http://www.mocktrading.com/

E*Trade: The Game

Take $100,000 in play money and, using real market data, compete for cash and prizes.
http://www.etrade.com/cgi-bin/gx.cgi/AppLogic+GameStartPage

Jottonia

An internet-based computer game where the objective is to earn money by investing, getting a job, or loaning virtual money.
http://jottonia.sdsl.no/