TerraTools Core processing is augmented by optional TerraTools plug-ins. Each optional plug-in is sold separately so that customers can have maximum flexibility to configure their TerraTools licenses with the collection of import/interchange, visual, constructive, or serious game export capabilities. This allows for lower capital costs and targeting of TerraTools licenses for specific task domains. Plugins can be grouped into three functional areas: modeling and simulation export, database interchange, and data import.