Clash of Wits

Clash of Wits was a simple computer game where two participants played the roles of puppet masters, using various kinds of creatures and forces to attack each other until either one of them caved in.

The game was fairly popular among teenagers and young adolescents, but not a phenomenon in any sense of the word. It was eventually followed by the similar - but more advanced - Mind Clash, which was released over a century before YC103.