So a few bits of feedback:
The flashlight should have different icons for different states, II for full light, I for low light and 0 for no light.
As an alternative for the batteries recharging, I suggest a hand-crank that causes noise as a trade-off. I have a similar-looking hand-operated flashlight-dynamo-radio combo. Maybe have a radio function that also gives guidance or signals? Maybe radio beacons on the explorers to help find them?
Is the player status icon also a health indicator?
The crawler-man is purple for me.
Any item that is usable should be used with just pressing E and should give feedback that it has been used. I'm looking at the save station and the barred way up. I see some usability but I don't know what I lack or need for a given item.
It would help that there would be visible item slots and icons showing which slot is occupied. I picked up the first-aid pack thinking it would instantly heal me but instead occupied a slot without me noticing.