Comment by Jare

Yeah the ill-named Speed Haste, which unfortunately does not seem to work in the recent Internet Archive DOSBox thing:

https://archive.org/stream/msdos_Speed_Haste_1995/Speed_Hast...

For the record, the source code for the game is available on GitHub:

https://github.com/TheJare/SpeedHasteSrc

We were bit oddballs in the demoscene because we had been making games and professional software for years, and we were 5-10 years older than most sceners.