Using games as a learning tool is not new--research abounds to demonstrate the use of video games enhancing problem-solving skills and creativity. Pioneer educational games, like Carmen Sandiego and Oregon Trail, have given birth to online, multiuser, digital simulations that would make their forebears blush. Now, in what seems to be a natural evolution, a growing number of schools are taking the concept one step further and asking students to design the games themselves. Game creation as a learning tool is really just a digital-age take on the old learning-by-doing approach to teaching: Students pick up concepts more easily and retain more information when they are hands-on with their subject matter. In game creation, students are presented with the task of building a digital learning activity that focuses on a particular topic, such as ecology, mathematics, or social studies. Using a framework and the fundamentals of game design, they create a game that demonstrates their knowledge of the topic. (Contains 7 online resources.)