Hello fellow Vogoner's. 😀

I remember I have seen a demo once, which was on a shareware/demo cdrom from either Dixons or Dynabyte (1993-1996), which sadly isn't in my possession anymore. 🙁
There was this demo, which was unplayeble btw, that showed a futuristic city and I remember there were mechs in it, it ran quite long over 5 minutes I think.
It was all shown in the game's software 3D engine, so no cgi or anything, I'm pretty sure it was in 320x240 resolution though it might have been something else.
As far as I know this game never saw release because then I probably would have known, maybe it never was supposed to be a game but just a techdemo.

Now I'm hoping one of you might just know what I'm looking for? 😀