This game is very clearly early in its development so don't take any of what I say too negatively, I'm just mentioning everything I noticed while playing the game.
I'm not sure if it's just on my system but I could only get the demo level to run and the main level wouldn't run at all (Game didn't crash but just gave a blue screen until I switched levels). The interact key made the player character run and would only stop running if I pressed the loadout or radar menu keys. Jumping also moved at run speed regardless if I was running or not. I suggest working on the menu because I was very confused and took me a while to figure it out. I still don't know how the loadout and radar menu works (Although I assume most of it is still WIP) this includes the main menu for example the game and system buttons on the top, where you can move to system with the right arrow but can't move to the game button with the left (you have to press the down arrow). I also don't think the bgm should stop when you open up the Radar and loadout menu. The mini radar on the top right would switch between being opaque to transparent when I transition between menus (not sure what the exact cause is). And spamming the loadout and radar menus caused it to break. Like you mention in the readme the default controls are very poor, although the only real problem is the camera control, everything else isn't that bad. Not sure where you plan to go with the game but the visual and 3d environment so far look pretty cool, and I really like the aesthetics of the menu. You clearly have something pretty cool here and I can't wait to see more of it in the next DD.