From Wikipedia <<a href="https://en.wikipedia.org/wiki/PC_game" rel="nofollow">https://en.wikipedia.org/wiki/PC_game</a>>:<p>>By 1993, PC games required much more memory than other software, often consuming all of conventional memory, while device drivers could go into upper memory with DOS memory managers. Players found modifying `CONFIG.SYS` and `AUTOEXEC.BAT` files for memory management cumbersome and confusing, and each game needed a different configuration. (The game <i>Les Manley in: Lost in L.A.</i> satirizes this by depicting two beautiful women exhaust the hero in bed, by requesting that he again explain the difference between extended and expanded memory.)