A recently discovered hole in Valve's API allowed observers to generate extremely precise and publicly accessible data for the total number of players for thousands of Steam games. While Valve has now closed this inadvertent data leak, Ars can still provide the data it revealed as a historical record of the aggregate popularity of a large portion of the Steam library. From the report: The new data derivation method, as ably explained in a Medium post from The End Is Nigh developer Tyler Glaiel, centers on the percentage of players who have accomplished developer-defined Achievements associated with many games on the service. On the Steam web site, that data appears rounded to two decimal places. In the Steam API, however, the Achievement percentages were, until recently, provided to an extremely precise 16 decimal places.

This added precision means that many Achievement percentages can only be factored into specific whole numbers. (This is useful since each game's player count must be a whole number.) With multiple Achievements to check against, it's possible to find a common denominator that works for all the percentages with high reliability. This process allows for extremely accurate reverse engineering of the denominator representing the total player base for an Achievement percentage. As Glaiel points out, for instance, an Achievement earned by 0.012782207690179348 percent of players on his game translates precisely to 8 players out of 62,587 without any rounding necessary (once some vagaries of floating point representation are ironed out). Ars has shared the Achievement-derived player numbers in their report; there's also a handy CSV file. Some of the titles with the most total unique players include Team Fortress 2 (50,191,347 player estimate), Counter-Strike: Global Offensive (46,305,966 player estimate), PLAYERUNKNOWN'S BATTLEGROUNDS (36,604,134 player estimate), Unturned (27,381,399 player estimate), and Left 4 Dead 2 (23,143,723 player estimate).

An anonymous reader quotes a report from The Verge: AI agents continue to rack up wins in the video game world. Last week, OpenAI's bots were playing Dota 2; this week, it's Quake III, with a team of researchers from Google's DeepMind subsidiary successfully training agents that can beat humans at a game of capture the flag. DeepMind's researchers used a method of AI training that's also becoming standard: reinforcement learning, which is basically training by trial and error at a huge scale. Agents are given no instructions on how to play the game, but simply compete against themselves until they work out the strategies needed to win. Usually this means one version of the AI agent playing against an identical clone. DeepMind gave extra depth to this formula by training a whole cohort of 30 agents to introduce a "diversity" of play styles. How many games does it take to train an AI this way? Nearly half a million, each lasting five minutes. DeepMind's agents not only learned the basic rules of capture the flag, but strategies like guarding your own flag, camping at your opponent's base, and following teammates around so you can gang up on the enemy. "[T]he bot-only teams were most successful, with a 74 percent win probability," reports The Verge. "This compared to 43 percent probability for average human players, and 52 percent probability for strong human players. So: clearly the AI agents are the better players."

An anonymous reader quotes a report from Kotaku: We haven't heard many specifics about Google's video game plans, but what we have heard is that it's a three-pronged approach: 1) Some sort of streaming platform, 2) some sort of hardware, and 3) an attempt to bring game developers under the Google umbrella, whether through aggressive recruiting or even major acquisitions. That's the word from five people who have either been briefed on Google's plans or heard about them secondhand.

So what is this streaming platform, exactly? Like Nvidia's GeForce Now, the Google service would offload the work of rendering graphics to beefy computers elsewhere, allowing even the cheapest PCs to play high-end games. The biggest advantage of streaming, as opposed to physical discs or downloads, is that it removes hardware barriers for games. Whispers have been quieter about Google's hardware, whatever that may look like, but the rumors we've heard suggest that it will link up with the streaming service in some way. We're not sure whether Google is looking to compete with the technical specs of the next PlayStation and Xbox or whether this Google console will be cheaper and low-end, relying on the streaming service to pull weight. The streaming platform, which is code-named Yeti, was first reported by the website The Information earlier this year.

At this month's E3, Microsoft confirmed "a first in the booming world of game streaming," reports Ars Technica. "It's a subtle thing, which we're dubbing 'stream-to-win,' and it sees Microsoft take its boldest step in battling the behemoth service Twitch." From the report: Horizon 4 will be the first Microsoft Studios game to recognize when players broadcast their live gameplay via Mixer and then give out bonuses within that game for doing so (Mixer is a Twitch-like service that Microsoft acquired in 2016 before re-dubbing it Beam). All Xbox One consoles received an update last year to integrate one-button "stream to Mixer" support, which players can swap to Twitch by going through the system's options.

In the week-plus since learning this about Horizon 4, we have been unable to find a comparable feature in any video game -- meaning, one that recognizes a broadcast (on Mixer, Twitch, or any other service) and then gives out goodies inside the same video game as a reward. Some video games already include official and deep integration with Twitch and Mixer, but these rely largely on audience-driven votes, like in the digital card game Superfight and the battle royale game Darwin Project.

Fortnite: Battle Royale has brought in more revenue in a single month than any other game of its kind, industry estimates suggest. Recode: The free-to-play game hit a new revenue record of $318 million in May, according to SuperData Research. That puts Fornite well ahead of other breakout games like Pokemon Go and Clash of Clans, and it's all the more spectacular when you realize the multi-platform game launched on consoles just eight months ago and on iOS just three months ago. Since then, Fortnite has brought in more than $1.2 billion in revenue, all of which comes from nonessential in-app purchases, for stuff like clothing and dance moves.

Over the weekend, Windows Central received a purported internal Microsoft presentation from earlier in the year detailing plans for mouse-and-keyboard support for the Xbox One. Microsoft has been teasing the support for years now, but it's finally becoming a reality soon. The Verge reports: Sources familiar with Microsoft's plans tell The Verge that Microsoft and Razer presented their plans at the annual Xfest event for developers earlier this year. Razer is planning to allow game developers to tap into its API to bring Chroma lighting effects to games. If all goes according to plan, Xbox One users will start to make use of this later this year with Microsoft's fall update for the Xbox.

Xbox gamers will welcome the addition of keyboard and mouse support, but some will question the impact on multiplayer games. Microsoft is allowing developers to detect whether a keyboard or mouse is present on an Xbox One, and games could potentially only match keyboard and mouse users with similarly equipped players. Balancing games will be down to developers, and Microsoft is offering up all the tools required to ensure games can implement the support in a variety of ways.

The decision to class gaming addiction as a mental health disorder was "premature" and based on a "moral panic," experts have said. From a report: The World Health Organization included "gaming disorder" in the latest version of its disease classification manual. But biological psychology lecturer Dr Peter Etchells said the move risked "pathologising" a behaviour that was harmless for most people. The WHO said it had reviewed available evidence before including it. It added that the views reflected a "consensus of experts from different disciplines and geographical regions" and defined addiction as a pattern of persistent gaming behaviour so severe it "takes precedence over other life interests." Speaking at the Science Media Centre in London, experts said that while the decision was well intentioned, there was a lack of good quality scientific evidence about how to properly diagnose video game addiction.

Among the more insidious gifts that video games have bestowed on modern culture is the loot box. The New Yorker: A loot box is like an in-game lottery ticket: for a small fee, involving real money, a player can purchase an assortment of items that promise to enhance the game experience. Loot boxes are an appealing source of income for game developers, and they've been integral to the rise of smartphone "freemium" games, which are free to download but can't be fully enjoyed unless the player pays for in-app boosts. For pretty much everyone else, loot boxes are a scourge. Players hate that they have to pay extra just to be competitive. Parents hate discovering, too late, that several hundred dollars in Clash Royale arena packs have been charged to their credit card. And, increasingly, government regulators are thinking that loot boxes look too much like gambling -- gambling aimed at kids, no less.

Belgium and the Netherlands have banned in-game loot boxes as a form of gambling, and Minnesota recently introduced a bill that would ban the sale of games containing loot boxes to people under the age of eighteen. The concern isn't merely prudish. In a finding that will surprise virtually no one, psychologists in New Zealand have discovered that loot boxes do indeed bear troubling similarities to gambling. The researchers, led by Aaron Drummond, of Massey University, looked at twenty-two console games released between 2016 and 2017, from Overwatch and FIFA 18 to Madden N.F.L. 18 and Star Wars Battlefront II. They noted how closely the loot-box system of each game aligned with five standard psychological criteria for gambling, including whether the loot box must be bought with real money, whether it has tangible value in the game or can be cashed out, and whether its contents are randomly determined.

Valve's "Knuckles" controllers for VR, first introduced in 2016, are getting upgraded. According to Engadget, Valve is "sending game makers another version, the EV2, that has revamped buttons, straps and a slew of sensors that essentially translate finger motion and pressure to let you touch, grab and squeeze objects inside games." From the report: Some of the EV2's changes are evident: The old Steam Controller-style touchpad that dominated the controller's top has been shrunken to an oval 'track button' that measures touch and force. That's flanked by traditional inputs: A joystick (by developer demand, Valve noted in a blog post) and standard circular buttons. The strap is adjustable for different hand sizes and pulls tight to let players let go of the controller completely without dropping it -- which could be key for the pressure inputs.

While last year's model had touch inputs tracking each finger in the 'grip' area, the EV2 introduces pressure sensors that measure how much force the wielder is using. Obviously, this has implications for VR developers who want players to grip or squeeze objects in the world, but as Valve's blog post points out, combining those with the touch sensors tells games when players let go of the grips -- like, say, when they're throwing things in-game. Lastly, the battery life has been extended to last six hours.

Bethesda, the video game publisher behind Fallout and The Elder Scrolls, is suing Warner Bros. and Fallout Shelter co-developer Behavior Interactive over the recently released Westworld, alleging that the mobile game based on HBO's TV series is a "blatant rip-off" of Fallout Shelter. Polygon reports: In a suit filed in a Maryland U.S. District Court, Bethesda alleges that Westworld -- developed by Behaviour and released this week for Android and iOS -- "has the same or highly similar game design, art style, animations, features and other gameplay elements" as Fallout Shelter. Fallout Shelter was originally released in 2015 for mobile devices. The game was later ported to Nintendo Switch, PlayStation 4, Windows PC and Xbox One.

Bethesda said in its suit that Behaviour uses "the same copyrighted computer code created for Fallout Shelter in Westworld," alleging that a bug evident in an early version of Fallout Shelter (which was later fixed) also appears in Westworld. Bethesda alleges the companies "copied Fallout Shelter's features and then made cosmetic modifications for Westworld's 'western' theme."

An anonymous reader quotes a report from The Register: Legendary games company Atari has accused a Register reporter of making stuff up and acting unprofessionally following an interview earlier this year in San Francisco at the launch of its new games console, the Atari VCS. In that article, we were critical of the fact that the machine did not work, and that its chief operating officer Michael Arzt, whom we spoke to, appeared unable to answer even the most basic questions about the product. We were shown "engineering design models" that were said to be "real" yet turned out did not work, and pointed out as much.

In the article, we wrote: "What happens if we plug this into our laptop, we ask Mike. I don't know, he says. Will it work? I don't know. If we plug it into a different games machine, will it work? No. So it's custom hardware and software? I don't know about that." Presumably this is where Atari feels that the reporter "wrote what he wanted instead of what was discussed with him." Which makes this clip tough to explain -- and we'll give you a clue: your humble Reg hack is the one with the British accent... This is a clip of Atari having no idea about its own controller. The Register goes on to provide more examples of how Atari "is so full of crap..." The accusations started via the company's Facebook page, where a potential buyer of an Atari VCS posted a link to the Reg article and asked the company to explain it. The full interview between the journalist and Atari can be found here.

Minecraft for the Nintendo Switch is getting a big update today that will enable cross-play with PC, Xbox One, and smartphones -- but notably not the PlayStation 4. "Sony is blocking cross-play for Fortnite, Rocket League, and Minecraft so PS4 players can't play against Xbox One or Nintendo Switch owners," reports The Verge. "Meanwhile, Nintendo and Microsoft are partnering to utilize cross-play as a marketing weapon today." From the report: The Minecraft cross-play trailer specifically focuses on the Xbox One and Nintendo Switch being able to play together. It also includes the rare sight of an Xbox One controller in a Switch commercial. If that's not enough of a partnership, the ad even encourages players to create, explore, and survive together in Minecraft on Xbox One and Nintendo Switch.

Reports out of Taiwan now suggest that Nvidia has a gaming GPU inventory problem. An anonymous reader writes: Tech news site SemiAccurate which covers the GPU space pretty closely, and has broken stories like AMD's acquisition of ATI Technologies and Nvidia's Bumpgate, just published an article on why Nvidia has delayed their new gaming GPUs. It seems the Hot Chips 30 agenda cancellation and Jensen's no new GPUs for 'a long time' comment have created enough of a stir to get journalists and industry insiders asking questions. While curiosity amongst all this confusion is natural, I was surprised to discover that people were starting to speculate Nvidia's delay was due to technical issues with their new GPUs. This had never been a concern of mine, and as it turns out, it's clearly not the case. So, what the problem? Nvidia has overestimated pent-up gaming demand and underestimated the impact of declining mining demand.

The World Health Organization has announced "gaming disorder" as a new mental health condition included in the 11th edition of its International Classification of Diseases, released Monday. From a report: "I'm not creating a precedent," said Dr. Vladimir Poznyak, a member of WHO's Department of Mental Health and Substance Abuse, which proposed the new diagnosis to WHO's decision-making body, the World Health Assembly. Instead, he said, WHO has followed "the trends, the developments, which have taken place in populations and in the professional field." However, not all psychologists agree that gaming disorder is worthy of inclusion in the International Classification of Diseases, known as the ICD.

A diagnosis standard, the ICD defines the universe of diseases, disorders, injuries and other related health conditions. Researchers use it to count deaths, diseases, injuries and symptoms, and doctors and other medical practitioners use it to diagnose disease and other conditions. In many cases, health care companies and insurers use the ICD as a basis for reimbursement. Poznyak said the expectation is that the classification of gaming disorder means health professionals and systems will be more "alerted to the existence of this condition" while boosting the possibility that "people who suffer from these conditions can get appropriate help."

Mike Bouma writes: Pixelglass, known for their "Giana Sisters SE" game, has released a worthy new game for the Amiga 500, called "Worthy." Here's a description of this cute action puzzler: "Assume the role of a fearless boy and collect the required number of diamonds in each stage in order to win the girl's heart! Travel from maze to maze, kill the baddies, avoid the traps, collect beers (your necessary 'fuel' to keep you going), find the diamonds, prove to her you're WORTHY!" Time to dust off that classic Amiga or alternatively download a digital copy and use an UAE emulator for your platform of choice. Have a look at the release trailer.

An anonymous reader writes: "Several gaming companies have announced plans to remove support for an analytics app they have bundled with their games," reports Bleeping Computer. "The decision to remove the app came after several Reddit and Steam users noticed that many game publishers have recently embedded a controversial analytics SDK (software development kit) part of recent updates to their games. The program bundled with all these games, and at the heart of all the recent controversy, is RedShell, an analytics package provided by Innervate, Inc., to game publishers."

The app is intended to collect information about the source of new game installs, and details about the gamer. Following a massive user outcry in the past two weeks, several game makers have given in to pressure and are removing this SDK. Game makers and games who announced they were removing RedShell include Bethesda (Elder Scrolls), All Total War games, Warhammer games, Magic the Gathering Arena, and more. [This Google Docs spreadsheet and Reddit thread have a list of games containing RedShell.]

According to officials in Mexico, an artificial earthquake was reported in Mexico City that was possibly caused by "massive jumps during the goal from the Mexico national soccer team" on Sunday. KABC reports: Hirving Lozano scored the lone goal in the 35th minute, picking up Javier Hernandez's pass inside the penalty area and beating Mesut Ozil before shooting past Germany goalkeeper Manuel Neuer from 10 yards. The goal decided the match -- a match Germany didn't expect to lose. Mexico upset Germany, the defending champion, 1-0. The loss meant Germany became the third defending champion in the last 16 years to lose its opening match at the World Cup. "Two monitoring stations in Mexico City picked up the temblor the same time Lozano scored, 35 minutes into the match," reports USA Today. "Seismologists in Chile also said that their instruments detected an artificial temblor at the same time."

According to a new report from WCCFtech, citing "sources familiar with the entire situation," Sony's PlayStation 5 (PS5 for short) will launch in 2020 and be powered by AMD's Navi GPU chip. "While it was previously reported that the much-anticipated console will be using AMD's Ryzen CPU tech, it looks like the chip maker will have some involvement in the PS5's graphics chip, too," reports The Inquirer. From the report: The report also suggests this is the reason behind AMD not announcing a new GPU at Computex this year, because it has found custom-applications for consoles a much more financially attractive space. "Here is a fun fact: Vega was designed primarily for Apple and Navi is being designed for Sony - the PS5 to be precise," the report states, right before going on to explain AMD's roadmap for Navi and how it's dependent on Sony.

"This meant that the graphics department had to be tied directly to the roadmap that these semi-custom applications followed. Since Sony needed the Navi GPU to be ready by the time the PS5 would launch (expectedly around 2020) that is the deadline they needed to work on." It's anyone's guess as to when the successor to the PlayStation 4 will be launched. While the source for this report is seen as reputable in the games industry, last month the head of PlayStation business said the next console is three years off.

Two more men entered pleas in federal court for their roles in a SWAT call that led to a fatal police shooting in Kansas: not guilty. An anonymous reader quotes Reuters: Shane Gaskill, 19, of Wichita, Kansas, and Casey Viner, 18, from a suburb of Cincinnati, pleaded not guilty on Wednesday and remained free on $10,000 bond, court records showed. Both of the suspects live with their parents, local media reported. In the so-called "swatting" incident, in which someone falsely reports an emergency requiring a police response, Viner got upset at Gaskill over a video game they played online, federal prosecutors said, and Viner contacted a known "swatter"...and asked him to make the false report to police at an address that had been provided by Gaskill. Viner did not know that Gaskill no longer lived at the address, but Gaskill knew, prosecutors said.

After media reports of the shooting, Gaskill urged [swatter Tyler] Barriss to delete their communications and Viner wiped his phone, according to the indictment... Barriss and Viner face federal charges of conspiracy and several counts of wire fraud. Viner and Gaskill were charged with obstruction of justice and conspiracy to obstruct justice, and Gaskill was also charged with wire fraud and additional counts of obstruction of justice.
In a jailhouse interview in January, Barriss told a local news team that "Whether you hang me from a tree, or you give me 5, 10, 15 years... I don't think it will ever justify what happened... I hope no one ever does it, ever again. I hope it's something that ceases to exist."

In April, while still in jail, Barriss gained access to the internet then posted "All right, now who was talking shit? >:) Your ass is about to get swatted."

Gene Park, writing for The Washington Post (shared by numerous readers): In the Nintendo universe, Waluigi is supposed to be as villainous as his cartoonish mustache and perpetual frown would suggest. But what made him that way? Perhaps it is Nintendo's insistence on humiliating the character in front of his friends and the general public. On Tuesday for the Electronic Entertainment Expo, Nintendo announced new details on the much-anticipated Super Smash Bros. Ultimate for its Switch console. The 25-minute presentation was long on details. For one thing, the latest game includes every single playable character in the fighting-game franchise's 19-year history. It seemed to exceed fan expectations, except for fans of the meme-ready Waluigi. Waluigi, again, was snubbed by Nintendo. He will not be a playable character in the new game.

Waluigi has traveled a long road. Once he was hated by Nintendo fans, who listed him highly among gaming's most annoying characters. His origin story is unimpressive. Waluigi is simply a bizarro version of Mario's less famous but more charming brother Luigi. In his 18-year existence as a minor character, he's had virtually no back story. But that blank canvas ended up becoming Waluigi's greatest gift. Since he stood for nothing, supporters could project their wildest hopes unto him, like Barack Obama in 2008 but actually good at golf. He can be described in a single website as anyone from a "true nowhere man" to "the logical end point of capitalism" and the "triumph of capital over creativity." In other words, Waluigi became the perfect meme fodder.