I've always loved playing games on computers, and though I don't have much time for them any more, I still do!
I remember playing Lunar Lander on my TRS-80 Model 1 many, many years ago, and I also remember writing a graphical version for that platform in Z-80 assembly language. Great memories, and made only better by this article.
Did you know that the original Lunar Lander program was written in Basic on a PDP-8 by a high school student? And in under 50 lines of code?
Read the article for a fascinating retrospective.