ap photo The Activision Blizzard Booth is shown in 2013 the during the Electronic Entertainment Expo in Los Angeles. Microsoft is buying Activision Blizzard, Tuesday for $68.7 billion to gain access to blockbuster games including Call of Duty and Candy Crush. The all-cash deal will let Microsoft accelerate mobile gaming and provide it building blocks for the metaverse, or a virtual environment.

Microsoft is paying the enormous sum of nearly $70 billion for Activision Blizzard, the maker of Candy Crush and Call of Duty, a deal that would immediately make it a larger video-game company than Nintendo while raising questions about the deal’s possible anti-competitive effects.

The all-cash $68.7 billion deal will turn Microsoft, maker of the Xbox gaming system, into one of the world’s largest video game companies. It will also help it compete with tech rivals such as Meta, formerly Facebook, in creating immersive virtual worlds for both work and play.

If the deal survives scrutiny from U.S. and European regulators in the coming months, it could be one of the biggest tech acquisitions in history. Dell bought data-storage company EMC in 2016 for around $60 billion.

Activision has been buffeted for months by allegations of misconduct and unequal pay. Microsoft CEO Satya Nadella addressed the issue Tuesday in a conference call with investors.

“The culture of our organization is my No. 1 priority,” Nadella said, adding that “it’s critical for Activision Blizzard to drive forward” on its commitments to improve its workplace culture.

Activision disclosed last year it was being investigated by the Securities and Exchange Commission over complaints of workplace discrimination and in September settled claims brought by U.S. workforce discrimination regulators. California’s civil rights agency sued the Santa Monica-based company in July, citing a “frat boy” culture that had become a “breeding ground for harassment and discrimination against women.”

Wall Street saw the acquisition as a big win for Activision Blizzard Inc. and its shares soared 25% in trading Tuesday, making up for losses over the past six months since California’s discrimination lawsuit was filed. Shares of Microsoft slipped about 2%.

Last year, Microsoft spent $7.5 billion to acquire ZeniMax Media, the parent company of video game publisher Bethesda Softworks, which is behind popular video games The Elder Scrolls, Doom and Fallout. Microsoft’s properties also include the hit game Minecraft after it bought Swedish game studio Mojang for $2.5 billion in 2014.

The Redmond, Washington, tech giant said the latest acquisitions will help beef up its Xbox Game Pass game subscription service while also accelerating its ambitions for the metaverse, a collection of virtual worlds envisioned as a next generation of the internet. While Xbox already has its own game-making studio, the prospect of Microsoft controlling so much game content raised questions about whether the company could restrict Activision games from competing consoles, although Nadella promised the deal would help people play games “wherever, whenever and however they want.”

The acquisition would push Microsoft past Nintendo as the third-largest video game company by global revenue, behind Playstation-maker Sony and Chinese tech giant Tencent, according to Wedbush Securities analyst Daniel Ives.