I need open GL /voodoo 4

I am trying to play gangland on a voodoo4
and every site I have found is no longer around.
does any have this driver or know where I can get it?

3dfx went out of business a couple of years ago. Since it was their job to do the drivers, you only get “fan” made drivers that may or may not work at www.voodoofiles.com

I would get rid of that card if I where you because nobody supports Voodoo cards anymore.