/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.
Subject: Battery life. I bought a new car in 2001 and the first battery lasted precisely 4 years. Today, 11 years later, my second battery is still running strong for the following reason: I bought a computer controlled battery charger and made it a habit to fully recharge the battery every month once.