The latest in brain-teasing procrastination from developer SemiSecret, Hundreds is an iOS game that will slowly but surely take over your life. Simple in principle and addictive in nature, the game's clean interface will suck you in for hours, if you let it.
The rules are basic--distribute 100 points throughout the grey circles on your screen with the tap of a finger. Levels become more complex and draw out strategy with a single complication: larger circles turn red, and cannot collide with one another once volatile. These two concepts combine to create over 100 levels, ensuring that you won't have to work on that TPS report for at least a few days.