Website: http://www.afterprotocol.com/
The instillation is a bit complex, if you need help email Paradox@nac.netif it doesnt work.
We have a new permanent Beyond protocol server up now. its free and will be forever, everyone is just starting, so get it while its hot. its a truely 3d MMORTS none of that cheap text crap or FB style "MMO". players can vote to change the rules and play-style through an in game senate. two of the old developers are hosting it . You build on multiple worlds and make fully custom units (From engine to radar to weapons). its a bit complex but its pretty awesome.
This game is pretty complex, but it's a working, high quality mmorts. Try it if you're into multiplayer grand strategy type games.