Steam (service)
In September 2003, a software client named Steam launched to solve a specific problem for Valve's multiplayer games. Developers struggled with distributing patches because players would disconnect from servers for days while installing updates. Valve needed an automatic system that kept users connected and updated without manual intervention. The company approached Microsoft, Yahoo!, and RealNetworks to build this client but received rejection from all three. This failure led Valve to begin its own development in 2002 under the working names Grid and Gazelle. The platform was officially announced at the Game Developers Conference on the 22nd of March 2002, and entered beta testing immediately. Before this launch, Valve held a publishing contract with Sierra Studios that granted them digital distribution rights. Legal disputes arose when Vivendi Games sued Valve over these rights, claiming the new storefront undermined their physical sales agreement. Half-Life 2 became the first major title to require the Steam client upon retail purchase in November 2004. Users faced significant technical issues during this period as overloaded servers caused widespread connectivity problems. Third-party developers like Rag Doll Kung Fu and Darwinia began releasing titles on the platform in 2005. By 2013, the service had grown to include over 34,000 games and reached 132 million monthly active users.
The Steam Store allows users to purchase software licenses permanently attached to their accounts for unlimited downloads. A proprietary file transfer protocol delivers content through an international network of servers. Payment options expanded to include WebMoney in December 2010 and Bitcoin from April 2016 until its discontinuation due to volatility. Regional pricing strategies changed significantly after inflation in Argentina and Turkey forced Valve to move those markets to U.S. dollar-based pricing in November 2023. The interface supports user-defined tags added in February 2014 to help categorize games. Achievements were introduced in November 2007 to mimic Xbox 360 systems. Family Sharing features evolved from a basic system in September 2013 to a robust version called Steam Families released in September 2024 allowing six users to share libraries. Cloud saving capabilities were enhanced with Dynamic Cloud Sync in January 2022 to support portable devices like the Steam Deck. Users can redeem product keys from third-party retailers such as Humble Bundle or physical game boxes. The platform also sells non-gaming applications including productivity tools and soundtracks since October 2012. Video content was available between 2015 and 2019 before being removed except for gaming-related material.
A hacking attempt in November 2011 compromised customer databases containing encrypted passwords and credit card details. Valve responded by launching Steam Guard in March 2011 to protect against account hijacking via phishing schemes. This system locks accounts to specific computers using Intel Core processor security features. Two-factor authentication was later expanded to include mobile applications known as Steam Guard Mobile Authenticator. In December 2015, approximately 77,000 accounts were hijacked monthly allowing thieves to empty inventories of valuable items. New restrictions placed 15-day holds on traded items unless users activated the mobile authenticator. A bug discovered in July 2015 allowed anyone to reset any password using the forgot function leading to high-profile streamers losing access. Content delivery network misconfigurations exposed personal information for 34,000 users during a DDoS attack in December 2015. A zero-day vulnerability found in August 2019 allowed arbitrary code execution until Valve patched it following researcher reports. The Anti-Defamation League published a report in April 2020 stating the community platform harbored hateful content. An update to BlockBlasters in August 2025 contained malware that stole thousands of dollars from users before Valve removed it.
Steamworks API released in May 2008 allows developers to integrate digital rights management and other functions without direct publisher involvement. Custom Executable Generation creates unique encrypted copies of game files for individual users enabling multiple installations. Early Access models launched in March 2013 let developers release unfinished products for testing and funding. Steam Greenlight opened in July 2012 allowing users to vote on which games joined the service but faced criticism for bottlenecks. This system was replaced by Steam Direct on the 13th of June 2017 requiring identification forms and recoupable fees. Developers can now request keys for promotions or reviews while Valve evaluates requests to prevent manipulation. The Steam Workshop enables user-generated content sharing starting with Team Fortress 2 items in early 2012. Over $57 million has been paid to creators through this program since January 2015. Discovery algorithms replaced manual curation to help players find games based on purchase history. Curator Connect programs allow developers to reach specific reviewers directly without redemption keys. Game Recording features added in November 2024 let users capture and edit gameplay sessions for sharing.
Valve introduced a hardware survey in 2003 to collect CPU and GPU distribution data before Half-Life 2 released. Windows support ended for XP and Vista versions in 2019 affecting about 0.2% of users. macOS client launches occurred in May 2010 following cross-platform WebKit browser updates. Linux development began in July 2012 with an official release in mid-February 2013 supporting Ubuntu distributions. The Steam Deck handheld console launched in 2022 designed specifically for running Steam games. Big Picture mode announced in 2011 optimized the interface for television screens using gamepads or keyboards. In-home streaming evolved into Remote Play allowing transfers across home networks by June 2019. Remote Play Together added multiplayer capabilities for disparate locations in November 2019. Valve dropped macOS support for SteamVR in May 2020 while maintaining Windows and Linux compatibility. Native Apple silicon support was added after Intel-based Macs were discontinued in late 2025. The Steam Controller debuted alongside improvements to the interface in 2016 providing generic controller libraries for developers.
Valve removed House Party from the store due to nudity scenes criticized by conservative religious groups. HuniePop developers faced removal threats over light nudity before policies were rescinded in May 2018. Rape Day was denied distribution in March 2019 despite being described as a dark comedy power fantasy. An Anti-Defamation League report in November 2024 identified over 40,000 groups with hate speech names on the platform. Senator Mark Warner sent letters asking Valve to review these cases following the ADL findings. Storefront policies updated in July 2025 disallowed games violating payment processor rules leading to around 400 mature titles being pulled. Age verification requirements began in August 2025 for UK users viewing adult content via credit card validation. Blockchain technologies including non-fungible tokens were banned since 2022 due to market concerns. Generative AI content required disclosure statements starting January 2024 to ensure legal compliance. Active Shooter game removal exemplified trolling definitions established in September 2018 targeting conflict-generating software. Over 170 games were removed within a month of clarifying trolling policies. Negligee: Love Stories became one of the first sexually explicit titles offered after new moderation tools launched in September 2018.
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Common questions
When did Steam launch and what problem was it designed to solve?
Steam launched in September 2003 to solve the problem of players disconnecting from servers while installing patches for Valve's multiplayer games. The service provided an automatic system that kept users connected and updated without requiring manual intervention.
What happened when Valve approached Microsoft Yahoo and RealNetworks about building a client?
Valve received rejection from all three companies including Microsoft Yahoo and RealNetworks after approaching them to build the client. This failure led Valve to begin its own development in 2002 under the working names Grid and Gazelle.
How much revenue does Valve take from game sales on Steam as of October 2018?
Valve takes a flat 30% revenue share on all direct sales and microtransactions until October 2018 when they adjusted the cut to 25% for games earning over one million dollars. Further reductions to 20% apply once revenue exceeds five million dollars.
What security measures were implemented after the November 2011 hacking attempt compromised customer databases?
Valve responded by launching Steam Guard in March 2011 to protect against account hijacking via phishing schemes using Intel Core processor security features. Two-factor authentication was later expanded to include mobile applications known as Steam Guard Mobile Authenticator.
When did the Steam Deck launch and what operating systems are supported?
The Steam Deck handheld console launched in 2022 designed specifically for running Steam games with support for Windows Linux and macOS clients. Native Apple silicon support was added after Intel-based Macs were discontinued in late 2025 while Windows and Linux compatibility remain active.