"The Rain Game" is a free online game for kids in the age group of 4 to 6. It aims to teach and improve hand to eye co-ordination. The idea is to catch the rain drops falling from the cloud above over an umbrella that can be controlled by the mouse movement. It has different levels of gameplay. A new level starts as you complete current level.
You can start playing it by clicking on this link.
You can watch the gameplay in the video below.