I also started with a ZX81, I still have all the docs that came with it, the ZX81 got binned while I was away at University to my horror. I used to play 3D Mons

I also started with a ZX81, I still have all the docs that came with it, the ZX81 got binned while I was away at University to my horror. I used to play 3D Monster Maze on it all the time.