The Riverside Company has acquired TerraSim, a terrain-generation software provider, as an add-on for its Bohemia Interactive Simulations platform. TerraSim's products create geospatial visualizations derived from a variety of data sources, including geographic information systems, aerial, satellite, terrestrial imagery, CAD and architectural models and high-resolution digital elevation models of the earth's surface. Bohemia develops and provides games for training technology and interactive simulation systems for defense, emergency and mission-critical customers.