Could be anything really. Gaming channels can be "Let's Plays/Walkthroughs," "Game Reviews," "Game Discussions," "Gameplays," "Old and New Games," "Game Riffs," "Compare and Contrast between Video Games," "First Impressions on a game you've never played," "Collaborations," or a mixture of any of these to make a quality gaming channel. Oh and Live Streams seem to be a thing these days too. There is a lot to do and a wide audience to embrace with a Gaming channel. It just depends on what you really want to do or can do in this case.