This game is a true classic and one that stuck with me through the years. I was more than overjoyed to find this for free download and even more overjoyed to find that it worked flawlessly with Vista of all things. Most games ike this require some kind of Dosbox style program which I find pretty dubious.
This is a truly straightforward download, exe, play file with no problems that I have come across. If you ever played Alien Breed then you will surely be up for another go. If you never played this game you've nothing to lose having a go now.
Just click on the little floppy disk icon on the link page.