The aiming in this game is... difficult to get used to. It's also a bit too bright for the gameplay and concept - a bright look works for action-y zombie games, but not one that plays more like a horror game. Similarly, I'd like to see death animations and some kind of ambient sound - it doesn't have to be music, maybe just a low drone. There's potential for a good horror game in here if you expand it.

Zombiez, huehuehue :D
Game is hard tho

Cool game! Needs animations though. And the movement feels a little spongy.. maybe reduce the acceleration/deceleration time.

I don't know why, but I like the fact that you have to load the gun before you can fire the first time.

Overall it's nice, definitely keep working on it if you still want to.

It's hard as nails, but I like that!
My issues however, are the same as already commented, but there is potential for a fun game. If you decide to continue developing this, try something with lighting and shadows(unlit hallways, lightning/thunder outside, flashlights, torches), I believe that would make a huge difference already.

Having to reload one bullet at a time is a nice touch, makes it a lot more dramatic. Was being able to aim only while standing still by design? Overall a fun game, good job!

I got to unlock the security but never made it outside, ha ha ha. Fun game! The one-touch-death thing makes it hard though.