Started out tough but got too easy
I enjoyed the game very much. It has very good graphics for a flash game and the gameplay was enjoyable.
The begining of the game was pretty difficult. It was nearly impossible to advance without your shelter being injured but that was okay since it took very little time to repair it.
Later in the game it got way too easy though. Throughout the game my shelter never really went below 85 hp. The choices were a fun idea but you need more options for the daytime. By day 11 or 12 I had 7 survivors and all the weapons available so I had nothing to do during the daytime. The uzi is maybe a little too powerful for where it's located in the weapons, too. I found I ended up using it over every gun but the barret once I finally got it. Maybe you could put the uzi later in the line of weapons.
In summary, increase difficulty, more options for daytime hours and maybe move the uzi later in the chain of weapons. Despite my minor criticisms it is a very good game. Easily one of the top zombie games on NG.