This looks promising but there's a couple of things that could be improved upon:
1. Graphical options
By "options" I mean having the ability to enable or disable vsync or set a custom framerate limit, by default the game is uncapped and that led to me being unable to move so I had to resort to capping the framerate via Nvidia's control panel and also enabling vsync.
Windowed and/or borderless windowed mode are not necessarily requirements but I'm sure there are people who would appreciate having the option.
As for actually changing the graphical fidelity, draw distance, etc... I think that's not really appropriate for a game that's going for such a specific aesthetic, so it's not really a necessary option to have in this case (in my opinion at least).
2. Rebindable keys
There's a list of available input commands listed on this game's page but I really think that they should be exposed and preferably modifiable in-game, at the very least there should be a way to look up all the controls in-game without having to rely on a website, this goes for both Mouse + Keyboard and Gamepad controls. (I know the Gamepad controls are shown during the initial loading screen but come on)
3. Bug fixes / QA
"Unable to move" bug
As previously mentioned, the game has an uncapped framerate by default and as a result the physics engine (seemingly at least) goes haywire and becomes unable to properly calculate physics in the game world, this results in the player not being able to move. This could be fixed by implementing a framerate cap or alternatively using vsync by default instead of having the user go into the control panel for their GPU and setting max framerate and vsync there.
"Unable to reload" bug
For whatever reason, I had 50 plasma energy in my inventory but I could not reload for the life of me. I tried going into the inventory and throwing the items on the ground (which you can do by pressing F but the controls' page doesn't mention this to my knowledge) and then picking them up again but I could still not reload yet I had ammunition in my inventory.
"Camera clipping"
This is a minor one, I don't think it's intentional either. When running through a corridor I was little bit too close to one side and the camera clipped through the wall a bit and I could see the blue void beyond it. The fix for this would be to add functionality to the camera which physically blocks it from going through solid objects / objects with colliders on them, though I don't think this would be a cakewalk to implement.
In conclusion, this is promising but I'm not sure if it's meant as a tech demo or a vertical slice or whatever but there are definitely some things that could be improved upon, especially considering that this is a PC release, though probably not a final build (maybe, I'm not sure).
P.S. I didn't mean to sound harsh or anything, I'm only trying to help =)