NecroDice (formerly known as Dice Roller) is a free, friendly and easy to use, yet powerful d20 System dice roller written by a group of student developers who call themselves NecroSurfer. The program is released under the GNU General Public License and is written entirely in C#. The current stable version of NecroDice is 2.3, but a beta of the next 3.0 version has been released.