Yes, it is possible to make money playing video games, but it does take some time and effort to pull off.

The first step to this method is to create a YouTube channel that focuses on gaming like the one here. From here you can either record gameplay of you playing some games you may already own or some popular free-to-play games. You can also go the route of buying a few popular AAA games and recording gameplay from them if you have a bit of money to spare.

Now it is worth noting that as of right now you will need 1,000 subscribers and 4,000 hours of watch time in a single year to monetize your channel, so that is something to keep in mind when deciding if you want to start off small with free to play games or dive straight into the deep end with a few popular AAA games.