: It is available as a free download and has a long history of community-run tournaments.
: Robots are programmed using Reverse Polish Notation (RPN) , where operators follow their operands (e.g., 3 5 + instead of 3 + 5 ). Robowars Free Download
RoboWar is a programming game where you write code for robots to fight autonomously in a virtual arena. : It is available as a free download