From GameWatcher: “Metro Exodus will not be coming out on Steam, according to the latest press release from Deep Silver, who have now decided to forego Steam altogether in favour of the Epic Games Store. A continuation of the exodus of AAA developers and publishers from Valve’s digital marketplace, really.
With Metro Exodus now an Epic Games Store exclusive, Deep Silver has also disclosed their reasoning for making the switch, thus making it crystally clear that the bottom line is – money.”
Source: N4G PC Metro Exodus Will Be Exclusive to Epic Games Store