They just released this the end of last week and over the weekend and had over 100,000 downloads before there server blew up...they are fixing the problem now, so you may want to give it a few days to get sorted out. You have to download it through MTX, which is their own bittorrent type client. This is important, because all updates are also handled through MTX and MekPak 4 is due shortly also.
@hellwig...of course there is still torso twist, but many do play keyboard/mouse...for me, joysticks are just ,more fun
@crazy hitchhiker....actually, MS didn't have much to do with this, as Smith & Tinker owns the current rights, MS's approval was just crossing the T's and dotting the I's...The MekTek team has there hands full right now, and I highly doubt a Linux port.
This was released for free to generate interest in the upcoming ( someday ) Mechwarrior 5, also by Smith & Tinker