Of course, nobody expected the farmers’ equally rule-breaking customers to be punished too. Among players, the R.M.T. debate may revolve around questions of fairness, but among game companies, the only question seems to be what is good for business. Cracking down on R.M.T. buyers makes poorer marketing sense than cracking down on sellers, in much the same way that cracking down on illegal drug suppliers is a better political move than cracking down on users. (Only a few companies have found a way to make R.M.T. part of their business model. Sony Online Entertainment, which publishes EverQuest, has started earning respectable revenues from an experimental in-game auction system that charges players a small transaction fee for real-money trades.) As Mark Jacobs, vice president at Electronic Arts and creator of the classic M.M.O. Dark Age of Camelot, put it: “Are you going to get more sympathy from busting 50,000 Chinese farmers or from busting 10,000 Americans that are buying? It’s not a racial thing at all. If you bust the buyers, you’re busting the guys who are paying to play your game, who you want to keep as customers and who will then go on the forums and say really nasty things about your company and your game.”

The cost to farmers of being expelled from WoW can be steep. At the very least, it means a temporary drop in productivity, because the character has to be to built up all over again, as well as the loss of all the loot accumulated in that character’s account. Given the stakes, some Chinese gold farms have found that the best way to get around their farmers’ pursuers is to make it hard to distinguish professionals from players in the first place. One business that specializes in doing just that is located a few blocks from the gold farm where Min Qinghai works. The shop floor is about the same size, with about the same number of computers in the same neat rows, but you can tell just walking through the place that it is a more serious operation. For one thing, there are a lot more workers: typically 25 on the day shift, 25 on the night shift, each crew punching in and out at a time clock just inside the entrance. Nobody works without a shirt here; quite a few, in fact, wear a standard-issue white polo shirt with the company initials on it. There is also a crimson version of the shirt, reserved for management and worn at all times by the shift supervisor, who, when he isn’t prowling the floor, sits at his desk before a broad white wall emblazoned with foot-high Chinese characters in red that spell: unity, collaboration, integrity, efficiency.

The name of the business is Donghua Networks, and its specialty is what gamers call “power leveling.” Like regular gold farming, power leveling offers customers an end run around the World of Warcraft grind — except that instead of providing money and other items, the power leveler simply does the work for you. Hand over your account name, password and about $300, and get on with your real life for a while: in a marathon of round-the-clock monster-bashing, a team of power levelers will raise your character from the lowest level to the highest, accomplishing in four weeks or less what at a normal rate of play would take at least four months.

For Donghua’s owners — 26-year-old Fei Jianfeng and 36-year-old Bao Donghua, both former gold-farm wage workers themselves — moving the business out of farming and into leveling was an easy call. Among other advantages, they say, power leveling means fewer banned accounts. Because the only game accounts used are the customers’ own, there is much less risk of losing access to the virtual work site. For their workers, however, the advantages are mixed. Though there is a greater variety of quests and quarries to pursue, the pay isn’t any better, and some workers chafe at the constraints of playing a stranger’s character, preferring the relative autonomy of farming gold.

As one Donghua power leveler said of his old gold-farming job, “I had more room to play for myself.”

It may seem strange that a wage-working loot farmer would still care about the freedom to play. But it is not half as strange as the scene that unfolded one evening at 9 o’clock in the Internet cafe on the ground floor of the building where Donghua has its offices. Scattered around the stifling, dim wang ba, 10 power levelers just off the day shift were merrily gaming away. Not all of them were playing World of Warcraft. A big, silent lug named Mao sat mesmerized by a very pink-and-purple Japanese schoolgirls’ game, in which doe-eyed characters square off in dancing contests with other online players. But the rest had chosen, to a man, to log into their personal World of Warcraft accounts and spend these precious free hours right back where they had spent every other hour of the day: in Azeroth.

Such scenes are not at all unusual. At the end of almost any working day or night in a Chinese gaming workshop, workers can be found playing the same game they have been playing for the last 12 hours, and to some extent gold-farm operators depend on it. The game is too complex for the bosses to learn it all themselves; they need their workers to be players — to find out all the tricks and shortcuts, to train themselves and to train one another. “When I was a worker,” Fan Yangwen, who is now 21 and in Donghua’s main office providing technical support, told me, “I loved to play because when I was playing, I was learning.” But learning to play or learning to work? I asked. Fan shrugged. “Both.”