A lot of people are making money off video games these days. YouTube celebrities (like PewDiePie) have made millions by recording themselves playing new releases. And some professional players earn hundreds of thousands of dollars in eSports tournaments. But even if you’re not cut out for Internet fame and no longer have the reflexes of a teenager, you may still be leaving money on the table.

Read more at Money.com: Your Old Video Games Might Actually Be Worth a Lot of Money