Wow, so cool! I did not know Starflight was written in Forth.

Starflight was my first experience with game patching. When I got my copy it would not run on my PC. I believe it was because I had an EGA graphics adapter. I wrote a letter explaining my problem and mailed it to Electronic Arts. They mailed a letter back. It said there should be a program on my computer named debug.com, and gave instructions about how to load the Starflight executable in it, replace a couple of bytes, and save it out. I followed the patch instructions and it got the game working! After which I spent many happy hours with my friends exploring the Starflight universe.