An 11-year-old in dark horn-­rimmed glasses, Jordan is a devotee of Minecraft, the computer game in which you make things out of virtual blocks, from dizzying towers to entire cities. He recently read “The Maze Runner,” a sci-fi thriller in which teenagers live inside a booby-­trapped labyrinth, and was inspired to concoct his own version — something he then would challenge his friends to navigate.

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Jordan built a variety of obstacles, including a deluge of water and walls that collapsed inward, Indiana Jones-style. But what he really wanted was a trap that behaved unpredictably. That would really throw his friends off guard. How to do it, though? He obsessed over the problem.

Then it hit him: the animals! Minecraft contains a menagerie of virtual creatures, some of which players can kill and eat (or tame, if they want pets). One, a red-and-white cowlike critter called a mooshroom, is known for moseying about aimlessly. Jordan realized he could harness the animal’s movement to produce randomness. He built a pen out of gray stones and installed “pressure plates” on the floor that triggered a trap inside the maze. He stuck the mooshroom inside, where it would totter on and off the plates in an irregular pattern.

Presto: Jordan had used the cow’s weird behavior to create, in effect, a random-­number generator inside Minecraft. It was an ingenious bit of problem-­solving, something most computer engineers I know would regard as a great hack — a way of coaxing a computer system to do something new and clever.

When I visited Jordan at his home in New Jersey, he sat in his family’s living room at dusk, lit by a glowing iMac screen, and mused on Minecraft’s appeal. “It’s like the earth, the world, and you’re the creator of it,” he said. On-screen, he steered us over to the entrance to the maze, and I peered in at the contraptions chugging away. “My art teacher always says, ‘No games are creative, except for the people who create them.’ But she said, ‘The only exception that I have for that is Minecraft.’ ” He floated over to the maze’s exit, where he had posted a sign for the survivors: The journey matters more than what you get in the end.

Since its release seven years ago, Minecraft has become a global sensation, captivating a generation of children. There are over 100 million registered players, and it’s now the third-best-­selling video game in history, after Tetris and Wii Sports. In 2014, Microsoft bought Minecraft — and Mojang, the Swedish game studio behind it — for $2.5 billion.

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There have been blockbuster games before, of course. But as Jordan’s experience suggests — and as parents peering over their children’s shoulders sense — Minecraft is a different sort of phenomenon.
For one thing, it doesn’t really feel like a game. It’s more like a destination, a technical tool, a cultural scene, or all three put together: a place where kids engineer complex machines, shoot videos of their escapades that they post on YouTube, make art and set up servers, online versions of the game where they can hang out with friends. It’s a world of trial and error and constant discovery, stuffed with byzantine secrets, obscure text commands and hidden recipes. And it runs completely counter to most modern computing trends. Where companies like Apple and Microsoft and Google want our computers to be easy to manipulate — designing point-and-click interfaces under the assumption that it’s best to conceal from the average user how the computer works — Minecraft encourages kids to get under the hood, break things, fix them and turn mooshrooms into random-­number generators. It invites them to tinker.