State of Decay. buy or not to buy? why?

It looks like a very good game. If you can, I say buy it.

I own it but I still havent played it that much but I would say buy it because ZOMBIES.

http://store.steampowered.com/app/247730/?snr=1_7_15__13

Better to buy DayZ

buy its a great game, is gta + left 4 dead in one game

its an excellent game! i have it on my 360.
you basically go around from house to house trying to get supplies & keep your people alive. you have a fatigue meter, so people will tire out & you will have to switch players in your group. you have to keep morale up. the map is fairly big. it is an open sandbox world. you have tasks that you will have to accomplish & hoards of zombies that you have to destroy so they dont reach your compound. you can pack up your compound & relocate. there are all kinds of tools that you have at your disposal to kill zombies. its more like The Walking Dead, with how they survive in the TV show. you can bring along players to come with you to help you with your tasks. its a single player only game. i dont know how it is on a keyboard but the mechanics on a controller are great. it was fairly buggy on the 360 but, it didnt loose or take away its fun. definitely a must buy, if you like any of those things

wait for dying light

If you're keyboard/mouse player, wait. Probably until 2014. It's still poor port, since on release date they wrote "Remember, this will not be the last patch ever, just because we're calling this a launch. The next patch in a few weeks will feature mouse accel changes, key remapping, and more".
But if you're pad player and want single-player DayZ, get it - you're in for a treat.