From the Press Release
BANDAI NAMCO Entertainment America Inc. today unveiled its digital pre-order offers for DARK SOULS™ III on STEAM, the PlayStation®Store on the PlayStation®4 computer entertainment system, and the Xbox Store. DARK SOULS III serves up its trademark sword and sorcery combat as players travel across a vast and twisted interconnected world full of unrelenting challenge and rewarding action-RPG gameplay.
Xbox One
For a limited time, digitally pre-order DARK SOULS III on the Xbox Store and get DARK SOULS playable for Xbox 360 now and later on Xbox One via Backward Compatibility. The code for DARK SOULS will be delivered to your Xbox message center in 7-10 days. You can redeem the code for DARK SOULS on your Xbox One console or at xbox.com/redeemcode. For Backward Compatibility information, see xbox.com/xbox-one/backward-compatibility.
PlayStation 4
Purchase a digital pre-order through the PlayStation Store on the PlayStation 4 system and receive a digital version of the DARK SOULS III Official Soundtrack and an exclusive pre-order theme for your PlayStation 4 system. Access to the soundtrack will be available on April 12, 2016.
STEAM
Purchase a pre-order of DARK SOULS III to receive a digital version of the DARK SOULS III Official Soundtrack. STEAM players who already own DARK SOULS™ and DARK SOULS™ II in their STEAM Library will receive a $5.00 discount towards their pre-order of DARK SOULS III.
A digital Deluxe Edition of DARK SOULS III is also available for pre-order through all three platforms. Pre-order the DARK SOULS III Deluxe Edition for $84.99 to receive the pre-order bonuses listed above along with an additional DARK SOULS III exclusive theme for the PlayStation 4 system and access to DARK SOULS III Season Pass content that will expand the DARK SOULS III gameplay when it becomes available at a later date.