The worldwide release, September 28, was announced on August 17 for PC and mobile platforms, and on August 28 it revealed that the PlayStation 4 version would be releasing on the same date. The game was made available on PlayStation 5 through backwards compatibility on November 11. On April 28, 2021, the PlayStation 5 version of the game was released, featuring enhanced visuals, improved loading times, and DualSense controller support. The game will be released on Nintendo Switch, though no release window has been announced. In May 2022, the development team confirmed that the Nintendo Switch version is still in development as of August 2022.
Prior to its release the game had over 10 million registrations, with over half of that from outside China. According to some, the game was the biggest international release of any Chinese video game. In the lead up to release, the game won the Tokyo Game Show Media Awards 2020 public poll, ranking first among 14 other games.
Shortly after the launch of the game, miHoYo announced a schedule for content updates over the following months. These content updates are planned to be implemented into the game every six weeks. Additional patches in the future will add more events and new areas of Teyvat. As a long-term project, much of the game remains to be finished. On release, only two of the seven major regions intended for the game were released, and miHoYo anticipates it will take several years for the game’s story to be completed. In a presentation given in February 2021, miHoYo president Cai Haoyu estimated that ongoing development for the game would cost $200 million per year. Prior to the release of the game, miHoYo released a manga detailing the background of its characters and the fictional world of Teyvat, and other future plans include a line of comics, toys, and a possible movie.