After 3 hours of blood, sweat and tears, i'm happy to say I finally beat the game. That going to the spaceship at the end bit was rather sly in my opinion, and i only figured it out by chance cause i wanted to read the computer for clues.
Apart from that, the ending is very well done, with plenty of anxiety from the countdown, which is just what you want in an escape sequence.
I'll check out the other games you suggested, and I'll give you some feedback on them.
Keep coding !