If you were to tell your parents that playing games is good for you and educational, they'd probably tell you that you were crazy. Playing games, however, is good for students to stimulate the brain and help them think critically. Brain games are fun, especially the ones that are challenging and educational. These games are not in the vein of a first-person or third-person shooter. They also don't come in the form of gratuitous violence.
Games can be fun, but they should be educational as well. There are games that help people who play with their math, science, grammar, and even history. There is no topic that is out of bounds when it comes to playing games. Take for instance the game, Math Lines. The object of the game is to destroy balls by forming pairs that add up to ten. You have to think quickly and efficiently. The numbers go faster as the time wears on. There's also the World's Capital quiz where you are challenged to find the capitals of different countries. It helps you to think outside the scope of one locale. Or try out a game to help you identify elements on the Periodic Table.
Believe it or not, games like those and many others boost brainpower. Some may think they are easy games to accomplish, but either way, there is still a learning environment to it. Brain games should challenge the player and help them think critically. Puzzles and games are a challenge unto themselves, but mixed with an educational aspect, everyone wins. The more games you play, the more education you get. There is no parent that doesn't want that for their child.