I love the System Shock aesthetic (and also see influences from Marathon), so this was a pleasant and fun surprise for me! It felt like I've found a game from the late 90s, you've nailed that part, and the music selection is great.
Some suggestions to improve: 1 - Ammo color readability: It would help if I had the ammo color next to the ammo count on the HUD (or some info on the game)
2 - The "wooosh" sound of the sword :)
3 - The font used for the text is kinda hard to read (but I get it that it feels "computerish").
4 - More difficult: the voice to EVE is not that great and feels too much like SHODAN; maybe using AI to generate something that feels more artificial?
This really feels like a finished game, so any improvement is welcome, congrats :)