Left to themselves, Quake III bots evolve to 'world peace'
Quake III, also known as Quake III Arena, was released in December of 1999. Despite this, the bots showed superior artificial intelligence when compared to the real intelligence of humans.
According to a message board thread on 4Chan, starting about 2007 a gamer set up Quake III server with 16 bots playing each other. In 2011, four years later, he remembered the server, and returned to see what happened.