History of the World is a $1.99 game in the app store.  In short, you tap on asteroids headed to your evolving planet in order to keep it safe.  The older your planet gets, the more developed it gets and the more points you obtain.  The game also has aliens that show up occasionally and you can let them land or destroy them as well.  The game also has three different difficulty levels, from the fairly easy to the really insane.  You can also share your scores as you reach different achievement levels via either Twitter or Facebook.

My one big suggestion for the game is to have an option to stop those popup breaking news alerts whenever you reach different levels of evolution.  I find them more distracting than informative.

Game play is very simple.  As such, I’d have an easier time recommending the game at a $0.99 price instead of the $1.99 price.  It isn’t a bad game, but I didn’t find it as entertaining as I do a lot of other games that are priced at half as much.