# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2012-06-21 18:07:58 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/215868677994713088) RT @Veriously: A simple, lightweight, fast and portable 2D rigid body physics library written in C http://t.co/SM4gHoHR #ios #opensource ...