When decorating a gaming room, it is a good idea to find non-traditional furniture that would fit into the theme. Bean bags for kids are great examples of these. Use the pieces as both decorative and functional additions to the room. Anyone who wants to play or watch can grab one and sit.
These come in a wide variety of colors. Get several pieces of the same hue or buy as many different shades as you can. It all depends on how you envision the final outcome. There are also several shapes and sizes to choose from. Small ones are fit for the children but don't leave the adults out on the cold. They should have their own extra large pieces as well.
Find items from a reputable supplier to guarantee longevity. Read the online reviews as well to see how owners are liking their purchases. There should be a mix of softness for comfort and firmness for stability. The outer cover should be spill-proof and removable for regular washing.