/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.
My battery lasted 4.5 years and 118000 miles. The problem with the battery (UK Spec) for manual cars is it is a bit weak. I replaced it with a much higher spec battery. My 2000 Outback still has its original battery, nearly 8 years and 105000 miles! It is the Auto model and all UK Auto models have the higher spec battery as standard.