Enter The SandBox Preview
When The SandBox first caught my attention, I thought it looked like a nifty little pixelated world-building game. In a way, it kind of is. However, I was thoroughly unprepared for just how many different aspects of this created world could be manipulated. Water will flow down hills, erode stone into sand, turn dirt into fertile soil, evaporate in extreme heat and freeze in extreme cold. Flowers and trees can grow. Weather will develop based largely on the environment. Players can even make rudimentary circuits to do anything from heating to creating light.
The SandBox is still very much in beta at the moment, but that's no reason not to get excited. What's already implemented is pretty amazing, actually. A lot of specifics are still up in the air, such as the final number of "story" levels (currently around 20), price and release date. It's kind of a shame because this is all so cool, but then again it's probably best not to rush things. Although the super-curious or anxious can try to get in to the beta. No guarantees, though. Regardless, be sure to keep an eye out for The SandBox whenever it does hit the App Store.