I recently played a couple of new games for old systems. There exist really good ones. You can check those links:
https://www.protovision.games/
http://www.retroworks.es/index_en.php
For me is very hard to determine what drives me to such games. It seems completely irrational. Maybe it is really a nostalgia. My first machine was an IBM XT PC in 1994 when I was 8 years old. It was more then 10 years behind the state of the art. Indeed it has capabilities close to the 8-bit machines despite being 16-bit.