From Press Release:
Ahead of Diablo Immortal’s launch on June 2, you may begin to see the mobile version propagate starting the morning of June 1 PDT on both the Apple App Store and Google Play. This is due to the nature of how mobile games rollout and will ensure a smooth launch. For full instructions on installation as well as our rollout schedule and FAQ, please check out our full blog here.
For everything Diablo Immortal, you can check out our official website
