for Linux based debian package manager, you con add get deb ppa to get the latest release of this game.
I'm no gamer so my views may not be a good refference. Still, everything was great, from graphics & sounds to ideas and speed, except for one (most important) thing: you cannot get past a certain point since there is no explanation on how to do it or at least what your options would be. You just have to wait or hope someone wrote something about that...
The developers have had plenty of complaints about the AI to know. The behavior of trucks, mechanics and engineers is atrocious. It kills the best game I ever played. Losing a game because of trucks putting themselves in the line of fire is gutting. It is not military discipline and as cyborgs they do not have emotions. It remains a 3 to 4 star game. What a waste.