I was playing the game at home and up popped a window letting me know two more villagers fell thru the cave and into the new village. Does this happen in every game?

Also against warnings, I did a time warp and killed the whole tribe. All the food and tech points are still there. Is there a chance any other villagers will drop thru and continue what I have or should I just bag the whole game.


Thank you... any help is great.