Paradise Lost: FPS Cosmic Horror Game

This is the Pre-Alpha release of the game and does NOT represent the finished product. I'm open for suggestions for the next Alpha releases leading to the final game.
The game revolves around a very peculiar kind of horror called Cosmic Horror, making the player feel the fear of the unknown and unfathomable and struggling to survive in situations you may call hopeless. The player will be able to make use of guns, however, that will not be the main focus, guns won't be enough to deal with the enemies I have in store. You have to use your wits and take decisions in order to make it through.
This first Pre-Alpha demo will have the key feature of the game but with some of them still unpolished, you will have access to one long demo level with a beautiful immersive environment but watch out, you don't know what might lurking behind this landscape.
You will have access to weapons, 3 to be precise, but the ammunition will be scarce, you will need to be careful with how you use your resources.
The enemies right now will be demo-exclusive, meaning that they won't appear in the final version of the game, those will be much more frightening, but that doesn't mean you will be able to underestimate them.
The game will also have one level for it's survival mode, where you will face countless waves of enemies charging at you, with very small time for you to refill in between.
More content will come in following updates.
The story
The story takes place on a planet which name is still classified, a week prior to the events of the game a scientific research team went missing on that planet, they were studying the flora, fauna and vestiges of an ancient civilization that disappeared thousands of years ago without leaving a trace. Although the planet looks lush and full of life, it's pretty much devoid of sentient beings and animals. An exploration android was sent to the last place the scientific team was seen to unravel the mysterious event.
Nothing but some equipment and traces of blood were found, the team is gone and most likely dead, their ship is in no better shape either, having crashed nearby, making potential escape impossible, close analysis to the ship shows no external damage, discarding the possibility of getting attacked by known enemies, however, a very interesting discovery was made when reaching the ship.
A mysterious dome-like structure is found by the exploration android, on closer inspection it seems to have a very peculiar energy signature. there's no way the long dead civilization was responsible for building this... thing. It looks organic, something completely different from what the temples nearby are. A distress beacon is detected but before it can be analyzed the android gets attacked by an unknown force cutting off the signal.
The research team was obviously attacked but by whom or what remains unknown, one thing is certain, some of them might still be alive, military intervention will be required, this is where you and your team come into play.