Not so long ago, I found a stash of my old ZX Spectrum games in the attic. And rummaging through those tatty boxes – the old half-forgotten bargain bin bangers, the illicit passed-around-the-playground compilation tapes – it wasn’t the games I found myself thinking about, it was the memories around them. My mind leapt back to evenings spent poring over stamp-sized magazine screenshots; the Friday night trips to Tescos and the exotic box art tempting me to part with my…