Spacewar! was the first video game to be played on multiple computers. It was created at MIT by Steve Russell and a bunch of collaboraters in 1962.

The code was public domain and college kids ported it to other computers. The students would sneak into the computer lab at night to play.

It is considered in the top ten of important video games. In 2006, it was proposed that the Library of Congress archive these important games. There are now thousands of video games preserved.