MTP Target has had a bit of a turbulent life; the game was designed to be monetized by a pay-for-features/content system and the lead developer closed the server code's source in order to "protect" this model. A couple of years later, the lead developer took down the servers due to conflict with players, effectively killing the game (a cautionary tale for all, I think). Tux-Target tried to implement an updated FOSS server from the 2005 sources but it never reached a workable state
Last October (tardy free gamer) they brought the servers back online; so the game is back! Be sure to check out this foss-y classic and help awaken it from hibernation-stupor
