Civiballs is a recognized series of free physics games online which we are never tired of. The player’s objective is to roll the ball into a vase of the same color, and don’t let an odd one in. This time we travel back to Ancient Rome, the Viking age and the Inca kingdom. Enjoy themed backgrounds and a cool soundtrack. Of course, you have to show your wit, but sometimes it is also the question of time to solve physics-based puzzles. That is why it is justified to classify physics games as skill games online. Search the site to find more brain-teasers of the Civiballs game series.