Both games satisfy completely different gameplay palettes, with Days Gone as a strictly single-player affair, and Anthem unsure of whether it wants to be a single-player game or an MMO, contrary to what BioWare is stating. However, viewed critically, both titles reveal deeper issues sweeping 2018s E3: an industry-wide tension between single-player and multiplayer.
Source: N4G PC Days Gone, Anthem, and What They Mean For This Year's E3