Puzzle games help us keep our brain fit and Stack Colors is no exception. As you can guess from the name, you are about to sort items according to their color. Take a look at these tubes filled with colorful balls. Right now, the balls are all mixed up. But you have to find a way to put each color into the same tube. If only it was as easy as pouring them all out and quickly splitting them into matching piles! But you can only pick one ball at a time. Solving this riddle might take quite a while, but you aren’t in a hurry, are you?