I managed to complete the game, but it was way too hard and quite buggy at times. To start with i'd accidently right click which would make my screen suddenly move to the far right, which was very annoying when there were loads of zombies on-screen. Then i ended up with my view suddenly going underneath the building in the white area which isn't supposed to be visible, and finally my mouse would very often go out the game window because i spent most of the game at the bottom part of the screen because there were so many zombies.
Really, it's annoying when the zombies take 5-10 bullets to kill even with semi-automatic on the assult rifles, or a few times as many as 3 shells from the rifle.
It was also quite brutal, i ended up spending the first 20-25 days without any good weapons and only 4 survivors because either the game just wouldn't give me anything, or i'd spend half of the game having to repair my barricades because there were so many zombies that it was literally impossible to get them all.
Just way too many zombies. Even after the first 4 or so days there were a large amount of zombies.