The Tomb of Horrors - Is This in Media?

You're in a virtual reality program that I designed to help train members of the Bureau of Balance. It's Matrix. That's really what it's modeled after, is an old dungeon and an old fantasy game called The Tomb of Horrors. You all started out with ten lives, but it looks like you burned through half of them. And then in the bottom right corner of your vision, some words start appearing and a chat message from a user named Boy Detective 15. He says, please be careful, sirs.