hahahaha. Don't know what the green things are but you die from it. Not sure what the point of the game is either. Nevertheless, I flew around with the space key and back on ground I can't die anymore :) 1 out of 5.
The game is pretty good with alot of information and questions. Should maybe skip the popultation ones as they change over time. The pace of the game is a tad slow. 4 out of 5.
I have never like this type of game but this is better than most. Even so, music isn't good and the graphics are glaring. Should add a backdrop or even a softer background color, just not bright white. 2 out of 5.