And DOOM of course.
https://www.ticalc.org/archives/files/fileinfo/238/23843.htm...
https://www.ticalc.org/archives/files/fileinfo/419/41975.htm...
But what it says is that it required 24MB of HDD (12MB after installation), and a 386 or equivalent computer. An i386 is quite powerful, to be honest. It even has protected mode!
And, 4MB RAM, which is more than what I had on my 286 laptop back in the day.