I’m surprised to see a QBasic game with 1GHz CPU and 512MB RAM required! Is that because the game needs it, or because that’s what it takes to even run a modern OS with dosbox or something?
I went over the BAS source the last time this was posted a few weeks back and it has a lot of keywords that are specific to QB64 so unfortunately you can't run this on a true DOS machine (or DosBox).
[1] https://qb64.com
The first time it barfed was because there was a space in the filename, and the QB64 editor didn't handle it. Running on the command line, with quotes around the name, was flawless.