Zombie Crisis is a stand-alone game for the PSP and PC platforms.
Well some say better late than never. A proper "plug and play" PSP version has been released and can be found on the download page.
The crisis isn't over! Check out these awesome additions by fans of Zombie Crisis!
Zombie Crisis has been finished and released for the PC and PSP platforms!
When there's no more room in hell, praise the lord and pass the ammunition!