A screenshot of a video game developed at Babycastles' game jam
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Video Game Jams attract coders in hackathon

13 June 2011 Last updated at 00:02 BST

Independent video game developers in New York City flock to a game jam, a 48-hour event where coders are asked to make games from scratch.

The jam was organised by Babycastles, an independent video game collective in Brooklyn.