as long as you didn't hit him with the axe and get the alternate ending you got the normal ending.
I cannot of time for a wood and generator game loop. So its implied the generate died the light went out and the aliens who need the dark destroyed mankind lol.
You are right about the sound when I was fine tuning its hard to that sound right I boosted wanting it more epic due to its nature. In hind sight I think overdid it a bit lol.
Thanks fir playing