We used to try and out-do each other by trying to get as much ‘free memory’ below 640k as we could by utilizing himem.
The highest I ever saw, IIRC, was something like 635k...............
Once I got the 580 I needed to play the game, I was good. :)
It’s funny the stuff you do that ends up being a great learning experience, and the motivation that led to it.
Those were the days. I remember using HIMEM and assorted other tricks to clear up memory.
I learned a heck of a lot fiddling with DOS and the earliest Windows.