From Dust allows you to play God. You can manipulate the environment to help a tribe survive mother nature. You can't actually control the people of the tribe though. We've heard about this "god sim" for a while and it sounds interesting but we had to find out how it played. Check out our hands-on E3 impressions.
"In the demo, my goal was to send a group of people to a sculpture that held the knowledge for how to protect their village against an impending tsunami, then return them back home before a timer counted down. The trouble was that the passage to their goal was blocked off by a an intimidating stream. This left it to me to sculpt the terrain in a way conducive to the populace.
To grant safe passage across the water I had to grab clumps of soil from other parts of the map and displace them on top of the water until a bridge formed. This worked, but took a long time, and seconds before my the city's hero could make it back, the tsunami came and wiped everyone out."
Check out our entire From Dust preview from E3.