This is good! The realistic space station was great, the reloading mechanic even better (I'm a sucker for a reloading that's more than 'press r'). The one thing I would pick on was how easy it was to get lost. Like, of course- this is a space station, it's not gonna have funky decorations to make every room distinct, but (for example) color-coding rooms would help. Like "I got to the room with yellow stripe in the middle from the room with a red stripe. If I get to the room with a red stripe again, means I got turned around".
Overall, though, great work!