In Death is the PC version of the game. While it has better graphics, it has otherwise been abandoned in favor of In Death: Unchained. It is due to this that cross-buy is not available as they are technically rhe difference between the Early Access and complete build. The many added levels, the Siege of Heaven mode, and the skins you can unlock between seasons are not available on In Death’s pc version. It is heavily recommended you focus your energy and money on In Death: Unchained.