To be honest, it is a little bit weird that the game is not available for pre-order on Steam, Microsoft Store, Nintendo Store, or PlayStation Store, that being said, Digimon Survive will be added to all of these aforementioned stores once it launches.
Digimon Survive will be available on PS4, Xbox One, Nintendo Switch, and PC on July 29.
You can either pre-order Digimon Survive directly from the Bandai Namco Store, or you can buy it from third-party retailers such as Amazon or GameStop.
Digimon Survive can only be pre-ordered through its official domain on Bandai Namco, which will give you a number of options.