Subspace, a.k.a. Continuum (Score 1)

The first MMOG I've every played, in development since 1995 and officially released in 1997 - still going strong today. Subspace! Now known as "Continuum" after its source was released and heavily expanded upon, the game attracted well over 10,000 players at its peak, and still enjoys a loyal following of more than 1000 players worldwide. Fantastic game, and horribly addictive; for more info, Wiki:

- http://en.wikipedia.org/wiki/SubSpace_(computer_ga me)