Great Game
It's quite atmospheric. You get the feeling of being a survivor of a zombie apocalypse, what with having to mind your barricade, finding better weapons, and searching for fellow survivors to help fight, search for weapons, and repair the barricade. Somehow I find it to be a bit more realistic than the likes of Left 4 Dead in that the zombies are recognizably human corpses, not something that may have been human but through surgery or genetic experimentation or whatever became something else. But yeah, after surviving 20 nights, I myself got a feeling of accomplishment, like maybe I could in fact, survive a real zombie apocalypse. Playing this reminds me that I should read The Zombie Survival Guide. You can't be too careful. Looking forward to playing the sequel.