Neuro-Evolving Robotic Operatives (nerogame.org)
This software is really more about game programming then a game itself. NERO is a demonstration of real-time learning by robotic warriors. Each robot uses its own neural network which evolves over time in response to training situations created by the user. Once the user is satisfied with their training, a team of robots can be sent into battle against another team on the same computer or across the internet or a LAN. Several academic papers have been written by the development team to explain the methodology being used.