DayZ is an open-world survival horror game in which players struggle to survive and even thrive in a zombie-infested post-apocalypric world. Starting with only the barest minimum of supplies you must explore the desolate post-Soviet nation of Chernarus. The disease-crazed zombies roaming the landscape are dangerous but your fellow survivors might be equally deadly -- other gamers may bash your head in just to steal your tins of beans and bottles of water. DayZ is a challenging game for players who don't mind learning as they go. Tutorials and advice are limited and if you die you'll be starting over again with nothing. The rewards you can expect are meagre: weapons with which to fight off zombies and other enemies enough food and water to keep you going and maybe a nice outfit or two. Teaming up with other survivors will be helpful -- if you can trust them of course. The controls are intuitive and the graphics are suitably desolate with crumbling post-Soviet landscapes and scenes of devastation juxtaposed with images of natural beauty. DayZ isn't for the easily frustrated but if you're the kind of gamer who doesn't mind occasionally dying because contaminated supplies gave you hepatitis it can be rewarding. Avoiding zombies -- or murderous fellow players -- can produce a great sense of satisfaction.