Termites is a test of swarming objects, and "isn't so much a game at all." Although there are no links to it on the site itself, the zip file is still available here
The game is played by guiding the swam of termites using the mouse cursor. If the swarm passes over grass, some of the termites give birth, creating a larger swarm. If the swarm is large enough, it's possible to eat the "buildings" on the map, although the swarm may shrink when you do so.