Well I have just completed my first game on hard (I still have to get the level 3 medicine tech). I managed to complete all the puzzles but I did have 7 villagers die - 2 of starvation and 5 of old age. I am going to have to try a little harder next time. I just opened up my game to see how everyone is doing. And to see if I had enough points for that last tech yet. I couldn't believe my eyes at all the babies. 2 twins and 2 triplets at the same time! Someone has been spending a lot of time indoors!