RARS
RARS is an acronym for Robot Auto Racing Simulator. It is an open source 3D racing simulator. RARS is designed to enable pre-programmed AI drivers to race against one another. RARS was used as the base for TORCS. It was used as an example in the book Intelligent Information Processing and Web Mining by Mieczysław Kłopotek. It was a monthly on-going challenge for practitioners of Artificial Intelligence and real-time adaptive optimal control. It consists of
 a simulation of the physics of cars racing on a track,
 a graphic display of the race, 
 and a separate control program (robot "driver") for each car. Each participant could submit a robot (a file written in C++) which controlled the car and competed to win the race. The input was the road and cars in front of it. The output was the driver wheel and driver accelerator position. RARS was downloaded from its main repository on SourceForge.net between 2000 and May 2017 almost 100,000 times. References

External links 
Official Webpage

Linux games
Open-source video games
Programming games
Racing video games
Racing simulators