August 8, 2019 Destiny 2 will be available exclusively on Steam later this year.
Destiny 2 launches on Steam alongside the Shadowkeep release date in October, offering up a new home for Guardians following Bungie’s split with Activision. We knew Shadowkeep would be available exclusively on Steam for PC players, but it wasn’t clear whether the rest of Destiny 2 would follow suit. Now we know.
“Unfortunately, Destiny will no longer be available on Blizzard’s Battle.net after October 1,” Bungie confirms in the announcement. You will get a one-time transfer of all owned content to Steam, including the game, expansions, annual passes, and silver currency.
You’ll be able to link your Battle.net and Steam accounts to facilitate the transfer on August 20. A day later, on August 21, broader cross-save functionality will go live, allowing you to transfer characters between platforms and play with them wherever you want. You won’t be able to transfer purchased content between either of the consoles or PC, though – that’s just a one-time feature for the move from Battle.net to Steam.
Original source: https://www.pcgamesn.com/destiny-2/steam-battle-net