The legacy instruments adapter for the Xbox One release of Rock Band 4 has been made available for individual purchase, Harmonix has announced.
The game is now available to pre-order on its own for the standard $60 price tag shared by the PS4 version – which notably still doesn't require any additional peripheral for backwards compatibility.
Meanwhile, the Xbox 360 instrument adapter can be had for $25 as a standalone product. That means the $80 bundle packaging both the game and the adapter would be the better deal; however, Amazon is currently offering a $15 discount to customers that pre-order using the code: RB4ADAPTER.
Rock Band 4 will also be offered on both platforms in a guitar bundle for $130, and a full band set bundle for $250.