I came across this game when I ordered a book through Amazon, as a simple way to teach basic accounting.
In order to introduce the concept of how the students were going to learn about Accounting (and allow them to utilize technology), I searched the Internet to find some sort of attention getting starter game. This is where I found the free and simple lemonade stand game.
The game:
http://lemonadestandgame.com/
The object:
The goal in this game is to make as much money as you can within 30 days. You have complete control over pricing, quality control, inventory control, and purchasing supplies. In addition, you also have to deal with other factors. These other factors include the weather and the level of customer satisfaction.
Some screenshots:
Here lists four items you will purchase:
At the bottom of the screen, the day is shown (Day 1 of 30), the amount of money (begins with $20), the temperature (70 degrees), and the weather forecast (Rain) .
After each purchase and day of sales, the money will change, as well as the weather each day.

Decide how many paper cups to buy each day.

Decide how many lemons to buy each day.

Decide how many cups of sugar to buy each day.

Decide how many ice cubes to buy each day.
Lastly, though most importantly, you will decide on the price per cup to sell the lemonade, and the recipe for a pitcher of lemonade.
Review:
Overall, the students enjoy this introductory game. Many go home and play it on their own afterwards. Some additional factors students learn during the game are:
Competitive Games:
After learning of the lemonade stand game a few months ago, I have since found to similar games:
Lemonade Tycoon – Yahoo games
http://get.games.yahoo.com/proddesc?gamekey=lemonade
Lemonade Stand – iPhone Application
http://toucharcade.com/2008/10/30/lemonade-stand-now-available-in-app-store/
Kelly Granfield
EDTEC 670 – COMET
Fall 2008