Apple removed 39,000 mobile games from the Chinese iOS App Store on New Year's Eve as it completed its crackdown on unlicensed titles. Reuters reports it is the biggest removal ever to occur in a single day, and was carried out alongside the removal of 46,000 non-games apps. The publication cites research firm Qimai, which claims only 74 of the top 1,500 paid games on iOS avoided removal. Among the games affected were Assassin's Creed Identity and NBA 2K20, the firm claims. Apple has been clamping down on all titles that did not have a valid publishing number -- or ISBN (International Standard Book Number) -- from China's National Press and Publication Administration, the government body that handles approval for game releases.