Free online games are great fun for anyone at any age. They provide an outlet for family and friends to get together no matter where they live, and many of them are so easy to play that you can do it from the comfort of your own home every day. From simple flash versions of popular games like Tetris and Mario to more complicated games like Stratego and Mentalis, there's a very good chance that one or more versions of these games can be found on your computer. The problem is, with all these games, how do you know which ones are worth playing and which ones should be junked? Fortunately, there's an easy way to find out which games are worth keeping around and which ones you should avoid at all costs.