Color Lines (1992)

Remake of classic Color Lines game for PCs.
The gameplay and the rules are very simple yet the game will keep you playing for hours and hours. The goal is to clear the board by moving the balls of the same color to form horizontal, vertical, or diagonal lines of 5 or more. The ball can be moved only if there is a path available.
Read more about Color Lines and its history in wiki:
http://wikipedia.org/wiki/Color_Lines