I think there is a typo given the controls, as 'Strafe Left' was on S not on A.
Maybe adding a kind of minimap could improve the overall experience, as I stopped playing once I felt completely lost searching for that terminal next to the green key card, which was somewhere near the start.
I also missed a tutorial and it took some time to get everything right.
All in all I think you have a solid foundation which could be really fun if you built on top on it and add more features.
Keep up the work and good luck with your game!