/r/gamemaker hosts a 48-hour game design and development contest called the gm(48) every quarter. You can find out more about the gm(48) here.
If properly cared for, however, you should get a number of years out of your battery, assuming that you own a gasoline powered or diesel fueled vehicle. If you own a hybrid, or an electric car, you can expect to get an amazing eight years of auto battery life before you have to think about replacing it. Batteries.
How long does the average small car battery last? Does charging mobiles in a car drain the car's battery? If I charge multiple devices in the car, while the car is running (3 phones, 2 iPads) will it drain the car battery? Terrance Seto, I'm a car nut.