Nexus A collection of tools to to work with the art in Civilization V. ModBuddy will prompt you to install this if you don't have it already Installing ModBuddy Extensions To use it, you have to install the Visual Studio 2010 Shell (Isolated) Redistributable Package. Mod Buddy An editor (IDE) for the XML and Lua elements of the game and allows for the creation, packaging, and uploading of mods. World Builder The stand-alone world builder allows users to create and modify maps and scenarios for Civilization V. 2 Digging the source code and the data tables.