DARPA Project Drives Simulation Technology for Off-Road Unmanned Vehicles Our Bureau 1409 Defense Advanced Research Projects Agency (DARPA)’s Robotic Autonomy in Complex Environments with Resiliency - Simulation (RACER-Sim) project is seeking innovations in technologies that bridge the gap from simulation to the real world and significantly reduce the cost of off-road autonomy development. DARPA invites proposals for promising solutions that support these goals. While the past decade has seen increased use of simulation in developing field robotics, the military off-road environment is especially challenging and complex. Computers need to re-create three-dimensional surfaces, compliant soils and vegetation, and hundreds of obstacle classes. Software also needs to take into account lower fidelity or limited mapping data, unique platform-surface interactions, continuous motion planning, and no defined road networks or driving rules. In addition, modeling high speed off-road performance of sensors/modalities, sensor-to-terrain representations, autonomous platforms, and autonomous control remains a software and processing challenge.