Games Done Quick's summer speed run marathon has begun, and its all for the sake of charity.

If you're unfamiliar with the event, a collection of speed runners have gathered together to play an assortment of games in a week long marathon to raise money for charity, specifically Doctors Without Borders. The event kicked off about an hour ago, and the first game, Super Mario 3D World, has already been defeated. You can find the full schedule of events by heading here.

Along with taking donations, there is also a Humble Bundle that can be purchased as part of the event for a minimum of $25 that includes Amnesia: A Machine for Pigs, Gunpoint, Noitu Love 2 Devolution, Bleed, Electronic Super Joy, Guacamelee! Gold Edition, Psychonauts, Dustforce, The Basement Collection, and Giana Sisters: Rise of the Owlverlord. You can buy it here.

For more on the event, head here. To watch the stream, head here.