'Expedition') was a MMORPG developed and run by Shanghai based Zhengtu Network.

[3] Also in 2007, the game recorded 2.8 million daily active players and 860,265 peak concurrent users (PCU) on March 23.

[citation needed] The game pioneered loot box predatory monetisation mechanics.

It featured the now-canonical lock-and-key system made famous by Counter-Strike, but would also show you all the loot that a chest could contain on a circle reminiscent of Wheel of Fortune.

According to the Southern Weekly article that describes ZT: "Chests will frequently contain the high-class equipment that gamers desire, but the spinning light wheel always passes over them.