I've figured out save strat finally... Fumble security system and try to keep power and cool by save actions while rushing to upper deck.
first of all, thanks for trying and congrats of managing to hit the 1000 (long) turns ending, with both switches. the hull is the determining factor, but cooling makes everything else degrades faster than losing power means losing lights and sights.
if you have any suggestions on how to improve the balance of the systems, i'm all ears. and i'm glad you liked it enough to try it again and again. :)