Amazingly addictive game. I still play this one from the original disk. The level of customisation on the units is a joy, you can create a variety of units to do specific jobs, along with the comprehensive tech tree. Granted the unique techs don't exist but you don't need them because certain techs benefit certain groups more. Why oh why is Alien Crossfire not included - if it had then that would have been another purchase. I guess I will stick with my original disk.
