I just installed the game and when I try to play it I get this message: The instruction at 0x00413476 referenced memory at 0x00000004. The memory could not be read. I'm currently running Windows 8 and to my knowledge GunZ isn't supported by Windows 8. Is there anything I can do to be able to play?

Get Windows 7.

Well no known solution yet really, but you could partition your hard drive and run windows 7 on that partition to play gunz.

Thank you for the replies I think I'll try it.