Apple removed 39,000 game apps on its China store Thursday, the biggest removal ever in a single day, as it set year-end as the deadline for all game publishers to obtain a licence.

Axar.az reports citing foreign media that the takedowns come amid a crackdown on unlicensed games by Chinese authorities.

Including the 39,000 games, Apple removed more than 46,000 apps in total from its store on Thursday. Games affected by the sweep included Ubisoft title Assassin’s Creed Identity and NBA 2K20, according to research firm Qimai.

Qimai also said only 74 of the top 1,500 paid games on Apple store survived the purge.