Google Stadia

Stadia was a cloud gaming service developed and operated by Google. Known in development as Project Stream, the service debuted through a closed beta in October 2018, and publicly launched in November 2019. Stadia was accessible through Chromecast Ultra and Android TV devices, on personal computers via the Google Chrome web browser and other Chromium-based browsers, Chromebooks and tablets running ChromeOS, and the Stadia mobile app on supported Android devices. There was also an experimental mode with support for all Android devices that were capable of installing the Stadia mobile app. In December 2020, Google released an iOS browser-based progressive web application for Stadia, enabling gameplay in the Safari browser.

Stadia was capable of streaming video games to players from the company's numerous data centers at up to 4K resolution and 60 frames per second, with support for high-dynamic-range (HDR) video. It offered the option to purchase games from its store, along with a selection of free-to-play games. While the base service was free and allowed users to stream at resolutions up to 1080p, a Stadia Pro monthly subscription allowed for a maximum resolution of 4K, 5.1 surround sound, HDR, and offered a growing collection of free games that—once claimed—remained in the user's library whenever they had an active subscription. Both tiers allowed users to play online multiplayer games without any additional costs. Stadia was integrated with YouTube, and its "state share" feature allowed players to launch a supported game from a save state shared by another player via permalink. The service supported Google's proprietary Stadia game controller, along with various non-Stadia controllers through USB and Bluetooth connections.

The service was in competition with other cloud gaming services, including Sony's PlayStation Plus cloud streaming, Nvidia's GeForce Now, Amazon's Luna, and Microsoft's Xbox Cloud Gaming. Stadia initially received a mixed reception from reviewers, with most criticism directed at its limited library of games and lack of promised features. Google had initially intended to develop in-house games in addition to hosting games produced by third parties, but abandoned this plan in February 2021, shutting down its studios. The service continued to sell third party games, and Google offered the game-streaming technology as a white-label product. Google announced in September 2022 that it would be shutting down Stadia; the service went offline permanently on January 18, 2023. Google refunded those that bought the hardware, and provided a software update to the Stadia controller to enable Bluetooth connectivity for use on computers, phones, tablets, and game consoles.

Stadia was a cloud gaming service, in which it requires an Internet connection and a device running either Chromium or a dedicated application. Stadia elaborated upon YouTube's capacity to stream media to the user, as game streaming was seen as an extension of watching video game live streams, according to Google's Phil Harrison; the name "Stadia", the Latin plural of "stadium", was meant to reflect that it was offering a collection of entertainment, which the viewer could choose to sit back and watch, or take an active part in. As Google had built out a large number of data centers across the globe, the company believed that Stadia was in a better position for cloud gaming compared to past endeavors like OnLive, PlayStation Now, and Gaikai, as most players would be geographically close to a data center. Players could start playing games without having to download new content to their personal device. Players could opt to record or stream their sessions on to YouTube without extra software or equipment. Viewers of such streams could launch their own instances of the games directly from the stream that they were just watching.

Stadia promised novel features based on its streaming model. Stream Connect would allow Stadia players, cooperatively playing the same game with friends, to have picture-in-picture inserts on their display of their friends' point-of-view in the game. This feature was first launched with the release of Tom Clancy's Ghost Recon Breakpoint. The streaming technology allowed for a larger number of concurrent players on a game server; for example, servers for Grid are normally limited to 16 players, while the Stadia version allowed up to 40.

While Stadia could use any HID-class USB controller, Google developed its own controller, which connected via the user's Wi-Fi directly to the Google data center in which the game was running, to reduce input latency. Google was also exploring further ways to reduce latency, involving the prediction of user input through various means, so that any apparent network lag between controller and game response was minimized. During its GDC 2019 keynote presentation, Google confirmed that the controller would also feature Google Assistant, which would automatically search YouTube for relevant, helpful videos related to the game the user was playing.

Stadia offered two tiers of service: a free level (initially at launch known as "Stadia Base" but after April 2020, simply "Stadia"), and a monthly subscription Stadia Pro level. The free Stadia level limited the video stream resolution to 1080p. The Pro tier, costing approximately US$10 per month, allowed users higher streaming rates, up to 4K resolution, access to a library of free games over time, and discounts on other games offered for Stadia.

Publisher-specific subscriptions would also be offered; for example, Ubisoft announced that its Uplay Plus (now renamed to Ubisoft+) subscription service would be available to Stadia users.