The 1.1 version of D20Roller is available as a free download on our website. D20Roller lies within Games, more precisely Roleplay. The following version: 1.1 was the most frequently downloaded one by the program users. This free tool was originally developed by Dieter Lunn. The most frequent installation filename for the software is: D20Roller.exe.
From the developer:
D20Roller is a C# application written to aid in playing D20 based RPG s online. It supports multiple players using a p2p style architecture. One person most likely the GM would setup a server allowing the players to connect and make dice rolls without cheating.
You may want to check out more software, such as Monato Esprit or Myth Xaran, which might be similar to D20Roller.