well there have been micro attempts over the years like this is 512 bytes (half a K) https://www.pouet.net/prod.php?which=83795 https://www.pouet.net/prod.php

well there have been micro attempts over the years like this is 512 bytes (half a K) https://www.pouet.net/prod.php?which=83795 https://www.pouet.net/prod.php?which=83795 but the one I am thinking about had textured walls and sound it used some insane levels of packing and exploits to render