Issue 1 of DIE was released on December 5th 2018.
The first collection will also be available digitally or from comic-shops in June 2019. Its Amazon page is online for those who like to pre-order, though you can also pre-order from any shops. We heart you, pre-orders.
If you want to get issues as they’re released, it’s always a good idea to talk to your retailer. Pre-orders on issues and subscriptions to series on comixology are great things to support comics.