I used to play this quite often and I remermber Plenty.
Tip 1: this game is very very easy to hack the tech points and food (the 2 basic things you need to last long times
Tip 2: 1 reality hour is 1 year in game so if you want quck progress (don't pause) quit and set your compuer clock forward a few hours)
Tip 3: if your going to go away for the night or most of the day PAUSE THE GAME WITH SPACE KEY!!! anything more than 12 hours can result in all of your tribe being dead be cautious.