Blizzard's action RPG Diablo 4 will be added to the Xbox Game Pass on Mar. 28. Since Microsoft's acquisition of Activision Blizzard, it was only a matter of time before games registered on Battle.net
The high pricing has been explained by the Age of Empires community as rather a tool to dissuade gamers from purchasing the game from Steam. There is another option of Xbox Game Pass which comes at a rather cheap price!