At the bottom left of this window there's a blank box with a 'Players' tab at the top. This will let you set the general parameters of the game, including the speed of the game, the starting date and win conditions. Look to the top of the screen and select the 'Scenario Editor' tab. There's no war, or death, or squabbling politicians to trouble your idyllic new Eden.
It's a quiet and peaceful place that belongs to nature alone.
