If you are really itching to try this out, either install the Gold Ed. in
windows/vmware (read below to find out why), or download the AvP Alien demo.
If you are wanting to run the Alien demo (the installer is an .exe but you
can just use unzip to extract the files from the .exe), add -DALIEN_DEMO to
the CFLAGS line (the one that's uncommented) in the Makefile. Rename all game
files lowercase. Be sure to install SDL 1.2 (http://www.libsdl.org) with
OpenGL support, nasm 0.98, and the latest OpenAL CVS (http://www.openal.org).
AvP requires a 3D card with OpenGL support.