It's no secret that gamers have good hearts; just look at the impact of Penny Arcade's Child's Play. Thanks to the Internet, geeks globally can assemble to perform these good works more easily than ever. Even Iron Man recently threw his hat (helmet?) into the ring to fight cancer.

Now it's your turn to do a good deed, play some good games, and have it not cost you a cent. Just sign up for Extra Life, a Sarcastic Gamer community effort. The process is simple:

1) Sign up — either as an individual or as part of an existing team.

2) Get your friends, family, and co-workers to pledge. It can be a flat amount or a per-hour. The minimum goal is $96 total. All proceeds benefit the Texas Children's Cancer Center at Texas Children's Hospital.

3) Play video games for 24 hours straight on October 18th. Some charities challenge their participants' endurance with marathons or see-saw-a-thons; your sacrifice will be an entire day of wakeful gaming. Besides helping kids in Texas, top fundraisers are also eligible for fantastic prizes.

If you want to participate in Extra Life, take this advice: form a team. Staying awake for 24 hours is painful enough without teammates to cheer you on. And solo gaming can be pretty tedious after awhile. But get three friends together for Bomberman Blast or Halo 3, and suddenly you won't know where the time has gone.

So let's all pitch in to give kids an extra life. And if anyone does sign up, please let me know about any help your team could use.