Who created the 1973 video game Lemonade Stand for MECC?

Bob Jamison created the 1973 video game Lemonade Stand for the Minnesota Educational Computing Consortium, or MECC.

The original game was developed for time-shared mainframe computers. Players run a child’s lemonade business, choosing how much stock to prepare, what price to charge and how many advertising signs to use. Weather and random events can affect the day’s results, so success depends on balancing risk, demand and limited money.

The game later reached a much wider audience through a 1979 Apple II port by Charlie Kellner. Apple included it with computers during the 1980s, helping make the title an early and memorable educational business simulation.

Charlie Kellner is therefore a common source of confusion: he ported the Apple II version, but Jamison is credited with creating the original 1973 MECC game. Don Rawitsch, famous for Oregon Trail, was not the creator of Lemonade Stand.