Lunar Lander was the first computer game I wrote as a kid on a spectrum. Well copied most of it from a magazine but it was bugged but I fixed it!
Starangely it wasnt until the early 90s that I got the hots for Defender.
Did you ever play scarmble? It was like gorf vs defender vs luna lander and from that mix spawend some of the greatest games like Mega Blast with the amazing sound track by the Bit Map brothers. There was something increidbly playable about the Gorf to 90s era that was only recaptured in the later part by games like sonic. That wonderful feel of achievement, constant progression even though your were doing the same thing time and time again. Maybe it was teen energybut I have yet to see or ecxperience anything quite like it since the dawn of open world games and RPG games (which I a a fan of). Even the sound tracks only got close to being truly memorable in Home World but the dizty 8 or 16 bit tracks and loops back then remain fresh and bring back an immediate felling of HELL YEAH!
From gorf to
https://www.youtube.com/watch?v=2w-tiRnac2k
and if you had CD TV
https://www.youtube.com/watch?v=mFkP6xzzTeI