This contains two demos (versions 0.93 and 0.97) that I found on FilePlanet for original release of Genocide.
Demos can be found here:
I uploaded this to ModDB, because the installers don't work on new versions of Windows. I installed the demos on Windows 98 computer emulated in PCem and repackaged the files, so others can try them out more easily on new computers. I also included d3drm.dll and dgVoodoo files so the demos actually start and to fix rendering errors. Unfortunately the demos crash randomly on my Windows 7 (64 bit) computer, so if you want to play for longer you either have to install them on a real Windows 95/98 era computer or an emulated one using PCem: