I like it. I think making it a little bit clearer that you can place planks on the doors would be nice (I didn't realize I could until about half way thru the zombie attack). I also think maybe some kind of sound effect for the zombies would make it more satisfying/polished. Like some kind of steps, or just some noise to indicate that they are. I like the music, did you make it yourself?
Thanks, i tried making placing planks clearer by adding glow effect to them, yes i was going to add footsteps sounds to zombies but i could not find any decent footsteps sounds online and i do not have a decent mic to record sounds myself and for the music they are not mine but i have added a lot of effects/mixes to them in audacity.