Despite its shiny creepy atmosphere, the polish in this game was really unrefined. There wasn't much to the title screen, and the instructions, while simple, felt half-hearted with the basic text that it felt less like tasks and more like obligations since I felt no motivation to follow those instructions it honestly only got worse as soon as I got the crossbow. Noticing the approaching zombies I tried out the crossbow and the feedback was extremely offputting. I couldn't tell whether or not I was shooting the zombies at some point since I simply charged into them and unloaded the infinite crossbow into their skulls. The feedback on the zombie's damage was even worse as I didn't realize I was taking damage until I killed all the zombies. Shortly after I simply just died to a random zombie as I was exploring the forest.
So here's what I feel like you should improve:
* Feedback: Any kind of signal for the player is important whether it's shooting or taking damage, You need to give a clear-cut sign on what is happening in order to show that there's actual danger. Even a corny scream of pain when the player is getting hit is enough to show that the player is in danger and they should move away
* Immersion: Some nitpicks I didn't like were how the zombies simply disappeared and that there were invisible walls near the forest. This breaks immersion and honestly with how you apparently tried to work hard on the game's atmosphere, these were huge blunders and dampened the experience since this is a horror game. There are other ways to show the player that they can't go past this point besides invisible walls, like making large fences or mountains.
*Gameplay: I feel as if you worked too hard on the atmosphere of the game that you neglected your gameplay and it's clear since everything else except the forest and castle feel half-baked. The shooting doesn't feel satisfying, the zombies don't feel threatening, and it's just not fun to play.
Sorry if this is mostly negative but I don't want to sugarcoat this since it's clear you wanted to make something great but you were too ambitious with what you wanted to make that it flopped in the end. So please don't be mad.