Natural Selection v3.0 Final
iethree writes "Natural-Selection version 3.0 final is released today, after several years in beta. NS is the most popular third party mod for Half-Life, it features a combination of RTS and FPS to create one of the most unique games out there. You can view the changelog and read an interview with one of the creators discussing the changes in the final release and the future of Natural-Selection."
That does raise a good point - if it were developed for, say, Tenebrae, it could be a completely free game. Why do modders insist on sticking to Half-Life and leave their creations to be trapped under Valve's licensing?