This was an effective horror game. The models and animations were very good and effective at setting the vibe. The sound effects were also good, and I really liked the reloading mechanic. It definitely added to the realism.
Although I feel as if the game is a bit unbalanced. Zombies take too many hits to kill, and there's not enough ammo to deal with them all. The crowbar has too little of a range. I saw in another comment that that was the point, but considering the length of your arm + the length of the crowbar, it makes sense for it to have more range. Otherwise, it just feels wrong and becomes very easy to die to the zombies, who hit quickly and seem to have more range. All this made it hard to get very far. Also, I came across an error where I was getting hit/taking damage even though there were no zombies around.
Even considering all of this, the game is still pretty impressive for a week. Good job!