Strangely enough one of the ST games that I remember most vividly was a little game that came on an ST Format cover disc that according to the blurb was made in just a few hours (I can't remember how many). It was a brilliantly simple but challenging affair that was also insanely addictive. You simply had to blow up the generator on each level to progress to the next - but different obstacles and enemies faced you. Featuring devious problems to solve and merciless collision detection, to this day I remember it as being one of the best ST games there ever was.
So when I found out today that someone has done a remake / update for the PC, I was over the moon! Here's the trailer showcasing some of the new features, though the graphics look almost identical to the original:
Visit the official site for more information and to download!