NATIONAL NEWS

How Candy Crush uses AI to keep players coming back to its puzzles

May 11, 2025, 4:25 AM

This image provided by King.com Limited shows the “Candy Crush Saga” video game. (King.com Limi...

This image provided by King.com Limited shows the “Candy Crush Saga” video game. (King.com Limited via AP)
Credit: ASSOCIATED PRESS

(King.com Limited via AP)

LOS ANGELES (AP) — PHOTOS NYBZ701-702 ON HOLD

Players swiping their way through more than 18,700 levels of Candy Crush Saga might be surprised to learn they’re solving puzzles designed with an assist from artificial intelligence.

The app that helped make gamers out of anyone with a smartphone uses AI to help developers create levels to serve a captive audience constantly looking for more sweets to squash. King, the Swedish video game developer behind Candy Crush, also uses AI to update older levels to help ensure players don’t feel bored, stuck or frustrated as they spend time with the game.

Todd Green, general manager of the Candy Crush franchise, said using AI in that way helps free up developers’ time to create new puzzle boards. It would be “extremely difficult,” he said, for designers to update and reconfigure more than 18,000 levels without AI taking a first pass.

Within the video game industry, discussions around the use of AI in game development run the gamut. Some game makers see AI as a tool that can assist with menial tasks, allowing designers and artists to focus on bigger projects. AI, they say, can help build richer worlds by creating more interactive non-player characters, for example. But there are also those who strongly oppose the use of AI, or who see the tech as a threat to their livelihoods — be it as video game actors and performers, or as workers who help make games. Concerns over AI led game performers with the Screen Actors Guild-American Federation of Television and Radio Artists to go on strike in late July.

“We’re not putting chatbots into the game. We’re not putting AI-powered design experiences into the game for players directly to play with,” Green said, adding that the tech is not being used to replace game workers. “Instead, we’re trying to deploy AI on existing problems that we have in order to make the work of the teams faster or more accurate, and more accurate more quickly.”

In the United States, consumer spending on video game content increased to $51.3 billion in 2024, up from $49.8 billion in 2023, with mobile games accounting for about half of all video game content spending, according to data from the Entertainment Software Association trade group. Mobile is now the leading game platform among players aged 8 and older, the ESA says.

Candy Crush — first launched on Facebook in 2012 — is constantly updating. King recently released its 300th client version of the game. Gaming giant Activision Blizzard acquired King in 2016 for $5.9 billion.

The free-to-play game is in a unique position, said Joost Van Dreunen, author of “One Up: Creativity, Competition, and the Global Business of Video Games.” Candy Crush is more than a decade old, boasts millions of users and caters to a “ravenous set of players,” he said. Demand is so high for new content that it makes sense to use AI to offset the work it takes to create so many levels, Van Dreunen added.

“To supply that at scale, you absolutely can rely on a sort of artificial intelligence or generative AI to create the next set of forms,” he said. “The thing about Candy Crush is that every level is technically a single board that you have to solve or clear before you can advance. With AI and the existing library of human-made boards, it makes total sense to then accelerate and expand the efforts to just create more inventory. People play more levels.”

King uses AI to target two separate areas: developing new levels and going back to older levels, in some cases, puzzles that are several years old, and reworking them to ensure they’re still worth playing. On new levels designed for people who have played the game for a long time, the company wants to ensure the puzzles are fun “on first contact.”

“That’s hard for us to do, because we don’t get the benefit of having many players test or play through the levels and give us feedback. We have to sort of try and pitch it right at first,” he said. “There’s a really important group for us in between people who maybe played before and perhaps took a break for a while, and then coming back because they saw or heard of or were curious about what might be new.”

Green said King uses AI as a behind-the-scenes assistant in the design “loop” of the game, rather than as a tool that immediately puts something new in front of players.

“Doing that for 1,000 levels all at once is very difficult by hand,” he said. “So the most important thing to understand here is that we are using AI as like a custom design.”

For most players, Green said, the fun in solving the puzzles lies in the “up and down.” Levels aren’t designed in order of difficulty. An easy level can follow a few difficult levels — or vice versa — to give the game a sense of variety. Leveraging AI means that instead of the team working on several hundred levels each week, they could potentially improve thousands of levels per week because they’re able to automate the drafting of the improved levels, he added.

“We talk to players all the time,” he said. “We also get the quantitative feedback. We can see how players respond to the levels… How easy are the levels? Do they get sort of stuck, or are they progressing in the way that we hope?”

To determine whether gamers and playing through the way the designers intended, King looks at several factors, including pass rate — how many times a player passes a level out of every 100 attempts — and how often a board is “reshuffled,” or refreshed with all candies rearranged. Some metrics are also intangible, like whether a level is simply fun.

“It’s also, to some extent, obviously subjective,” Green said. “It’s different for different people.”

National News

FILE - EPA Administrator Lee Zeldin attends a Make America Healthy Again (MAHA) Commission Event in...

Associated Press

EPA says Trump’s big bill should help in its fight to freeze billions in green bank funds

WASHINGTON (AP) — The sprawling tax and policy bill that passed Congress repeals a multibillion-dollar green bank for financing climate-friendly projects, and the Trump administration should be allowed to freeze its funding and cancel related contracts with nonprofits, federal officials said in a court filing. Climate United Fund and other nonprofits in March sued the […]

1 hour ago

Associated Press

Trump is expected to sign his huge bill of tax and spending cuts at the White House July 4 picnic

WASHINGTON (AP) — President Donald Trump is expected to sign his package of tax breaks and spending cuts into law Friday after his cajoling produced almost unanimous Republican support in Congress for the domestic priority that could cement his second-term legacy. Against odds that at times seemed improbable, Trump achieved his goal of celebrating a […]

3 hours ago

Associated Press

At least 3 dead in New Jersey after strong thunderstorms sweep through the Northeast

PLAINFIELD, NJ (AP) — Some residents in the Northeast were spending their July Fourth holiday cleaning up from strong thunderstorms that swept through the region Thursday night, bringing heavy rain, wind and hail. The storms are being blamed for at least three deaths in central New Jersey, including two men in Plainfield who died after […]

3 hours ago

President Donald Trump dances after speaking at a rally at the Iowa State Fairgrounds, Thursday, Ju...

Associated Press

Trump said he didn’t know an offensive term he used in a speech is considered antisemitic

WASHINGTON (AP) — President Donald Trump says he didn’t know the term “shylock” is considered antisemitic when he used it in a speech to describe unscrupulous moneylenders. Trump told reporters early Friday after returning from an event in Iowa that he had “never heard it that way” and “never heard that” the term was considered […]

6 hours ago

Associated Press

Officials find the body of a woman who got off a cruise ship in Alaska to hike and didn’t return

JUNEAU, Alaska (AP) — Authorities say they have found the body of a woman visiting Alaska’s capital city who did not return to her cruise ship from a hike she said she was taking. The Alaska Department of Public Safety said the body of 62-year-old Marites Buenafe of Kentucky was found by an Alaska Army […]

6 hours ago

Fireworks light up the St. Louis skyline and the Gateway Arch on Thursday, July 3, 2025, in St. Lou...

Associated Press

What’s open and closed on July Fourth

The Fourth of July holiday, also known as Independence Day, celebrates the Second Continental Congress’ unanimous adoption of the Declaration of Independence on July 4, 1776. A year later, according to the Library of Congress, a spontaneous celebration in Philadelphia marked the anniversary of American independence. But observations weren’t commonplace until after the War of […]

10 hours ago

How Candy Crush uses AI to keep players coming back to its puzzles