LOL - welcome home, my prodigal son...
This could be one of any of a number of IF games, man.
I'd recommend Deep Space Drifter (a TADS game) as it sounds similar, except for the bunker bit.
Have a browse here:
http://www.wurb.com/if/
It's fairly comprehensive and we're adding to it as time goes on.
Luchsen introduced me to this site - if he can't think of it, I don't know who can
