Each year at the Game Developer's Conference a special Game Design Challenge is held where 'three amazing game design greats create original concepts around a very unusual game design problem'.

This year's is a little unusual. Entitled "My First Time", the participants will be asked to come up with a concept which revolves around sex and autobiography. Once each has presented their idea, the audience will then choose who is crowned winner of the Game Design Challenge 2009.

2009 sees some interesting choices stepping up, with Infocom veteran Steve Meretzky, Portal co-creator Kim Swift and Habbo lead designer Sulka Haro all giving it a shot. The event has been organised by Gamelab chief design officer Eric Zimmerman.

The talks will be held on Wednesday, March 25 from 2:30 to 3:30pm at this year's GDC at the Moscone Center in San Francisco. Check out the GDC blog for all the latest.