Diablo 3, the third installment in the Diablo Game series is developed and published by Blizzard Entertainment. Diablo 3 is an Action-Adventure and Role Playing Game (RPG) and is available to play on Microsoft Windows, Mac OS X, PlayStation 3, Xbox 360, PlayStation 4 and Xbox One gaming platforms…, © 2019 Valve Corporation. All rights reserved. All trademarks are property of their respective owners in the US and other countries., Diablo 3 and Path of Exile are very different from each other. If he liked old Diablo 2 then yes he could give it a try but if he's looking for a Diablo 3 like game Path of Exile is not what one is looking for., Diablo 3 will not use Steam or Steamworks: like all Blizzard games, it will use Battle.net. And while Blizzard has stopped short of saying it's a Battle.net digital exclusive sale, the press release for the Diablo III release date states (emphasis mine):, , .