DECI (Distributed European Computing Initiative) is a resource exchange programme which provides researchers all over Europe with access to Tier-1 super-computing resources. DECI first ran within the DEISA project but since mid-2011 has operated within the PRACE environment (http://www.prace-project.eu), so far supporting 99 projects providing approximately 300 million core hours of computing time across over 25 machines. DECI calls open at 6-monthly intervals and successful projects are given access to resources for 1 year. Here we present an overview of some of the DECI projects presented in this Minisymposium highlighting some of DECI's achievements so far.