Microsoft is massively expanding Xbox’s original games portfolio: The software giant announced plans to acquire ZeniMax Media, the parent company of Bethesda Softworks — one of the biggest privately held game developers and publishers in the world — for $7.5 billion in cash. The deal will give Microsoft’s Xbox games division ownership of top-selling games including “Fallout,” “The Elder Scrolls,” “Doom,” “Quake,” “Wolfenstein,” “Prey” and “Dishonored.” Microsoft plans to add Bethesda’s franchises to its Xbox Game Pass cloud-based service, which has over 15 million subscribers, including future titles like the buzzy space RPG “Starfield.” With the addition of Bethesda, Microsoft...