“Video games as sport” is finally entering the big time — and it’s a little depressing.

The Electronic Sports League says it’s going to start a performance-enhancing drug testing program. 

Before you pooh-pooh it, you should know e-sports (as it’s known) is a quarter-billion-dollar-a-year business, with an estimated a fan base of more than 100 million. 

The performance-enhancing drug, by the way?

Not steroids or anything like that. It’s Adderall.