Steam is a digital distribution service and storefront developed by Valve Corporation. It was launched as a software client in September 2003 to provide game updates automatically for Valve's games and expanded to distributing third-party titles in late 2005. Steam offers various features, such as game server matchmaking with Valve Anti-Cheat (VAC) measures, social networking, and game streaming services. The Steam client functions include update maintenance, cloud storage, and community features such as direct messaging, an in-game overlay, discussion forums, and a virtual collectable marketplace. The storefront also offers productivity software, game soundtracks, videos, and sells hardware made by Valve, such as the Index and Steam Deck.
Audiosurf is a 2008 puzzle rhythm game created by Invisible Handlebar, a company founded by Dylan Fitterer. Its track-style stages visually mimic the music the player chooses, while the player races across several lanes collecting colored blocks that appear in sync with the music. The game was released on February 15, 2008, over Steam, a few days after winning the Independent Games Festival 2008 Excellence in Audio Award, heavily influenced by the soundtrack composed by Pedro Macedo Camacho. The full version was for a long time only available for purchase through Steam, but was later released as a retail product in Europe, by Ascaron. Audiosurf was the first third-party game to use Valve's Steamworks technology. The Zune HD version was also released as Audiosurf: Tilt. A sequel, Audiosurf 2, was released in May 2015.
Worms Reloaded is a 2D artillery turn-based tactics video game developed by Team17 that is part of the Worms series. The game was first released on Microsoft Windows via Steam, on August 26, 2010.
Xenonauts is a turn-based science fiction video game developed and published as the maiden title of London-based independent game studio Goldhawk Interactive. Inspired by the 1994 game X-COM: UFO Defense, gameplay involves the player taking the role of the commander of a clandestine organization known as the Xenonauts, and attempting to defeat an alien invasion of Earth in the alternative history year 1979. The game was released on June 17, 2014 for Microsoft Windows. Ports to Mac OS X and Linux were initially based on the Wine compatibility layer, until native ports became available in September 2015. A sequel, Xenonauts 2, was released through early access in 2023.
Dungeon Defenders is a hybrid multiplayer video game developed by Trendy Entertainment that combines the genres of tower defense and action role-playing game. It is based on a showcase of Unreal Engine 3 named Dungeon Defense. The game takes place in a fantasy setting where players control the young apprentices of wizards and warriors and defend against hordes of monsters. A sequel titled Dungeon Defenders II was released in 2015.
Terraria is a 2011 action-adventure sandbox game developed by Re-Logic. The game was first released for Windows and has since been ported to other PC and console platforms. The game features exploration, crafting, building, painting, and combat with a variety of creatures in a procedurally generated 2D world. Terraria is one of the best-selling video games of all time, selling 58.7 million copies as of 2024.
Divinity: Original Sin is a role-playing video game developed and published by Larian Studios. The fourth main entry in the Divinity game series, it is a prequel to the original game Divine Divinity, and to the other main games in the series. It was first released on Microsoft Windows on 30 June 2014.
Prison Architect is a private prison construction and management simulation video game developed and published by Introversion Software. It was made available as a crowdfunded paid alpha pre-order on September 25, 2012 with updates that were scheduled every three to four weeks until 2023. With over 2,000,000 copies sold, Prison Architect made over US$10.7 million in pre-order sales for the alpha version. Prison Architect was an entrant in the 2012 Independent Games Festival. The game was available on Steam's Early Access program, and was officially released on October 6, 2015.
Toki Tori 2 is a puzzle platform game, developed by Dutch video game development company Two Tribes. It is the sequel to the 2001 game Toki Tori. The game was originally announced in December 2011 with an intended release for Spring 2012 for Steam and iOS devices, but the game was pushed back due to longer than expected development times. The game was released on April 4, 2013 for Wii U and on July 11 on Steam for Windows and for Mac OS X.
Steam Machine is a discontinued series of small form factor gaming computers by Valve, designed to operate SteamOS to provide a home game console-like experience. Several computer vendors were engaged with Valve to develop their own versions of Steam Machines for retail, offering additional options atop Valve's requirements such as dual-booting options with Microsoft Windows and the ability to upgrade the computer. Consumers could digitally purchase video games on their Steam Machine through Valve's namesake Steam storefront.
SteamOS is an Arch Linux-based Linux distribution developed by Valve. It incorporates Valve's video game storefront Steam and is the official operating system for the Steam Deck, Valve's portable gaming device, as well as Valve's earlier Steam Machines.
Crypt of the NecroDancer is a roguelike rhythm game by Brace Yourself Games. The game takes fundamental elements of a roguelike dungeon exploration game and adds a beat-matching rhythm game set to an original soundtrack written by Danny Baranowsky. The player's actions are most effective when moving the character set to the beat of the current song and are impaired when they miss a beat, so it is necessary to learn the rhythmic patterns that the various creatures follow. The mixed-genre game includes the ability to import custom music, and the option to use a dance pad instead of traditional controllers or the keyboard. The game was released for Linux, OS X, and Windows in April 2015, being co-published by Klei Entertainment, for the PlayStation 4 and Vita in February 2016, for the Xbox One in February 2017, and for Nintendo Switch in February 2018. Crypt of the NecroDancer Pocket Edition, developed for iOS, was released in June 2016.
Unturned is a partly free-to-play game by Smartly Dressed Games, a studio consisting solely of Canadian game designer Nelson Sexton. It was released for Windows, macOS, and Linux in early access on July 7, 2014. The full game released three years later, on July 17, 2017. Unturned allows players to create custom maps using an in-game editor. Cosmetics and mods can also be created using the game's Unity engine, which allows them to publish creations on the Steam Workshop. A retail version of the game was released for the PlayStation 4 and Xbox One by 505 Games in November 2020. It was later ported to Nintendo Switch in March 2024.
The Long Dark is a first-person survival video game developed and published by Hinterland Studios. The player assumes the role of crash-landed bush pilot Will Mackenzie who must survive the frigid Canadian wilderness after a geomagnetic storm. The game received seed financing from the Canada Media Fund, and further funding was secured through a successful Kickstarter campaign in October 2013.
The Escapists is a strategy game developed by Mouldy Toof Studios and following a Steam Early Access release in 2014, was released in 2015 for Microsoft Windows, macOS, Linux, Xbox 360, Xbox One and PlayStation 4. It was released on iOS and Android in 2017. A Nintendo Switch version of the game containing all downloadable content was released in 2018. The game was launched on the Epic Games Store on 23 September 2021, with the weekly free game campaign of Epic Games. Players assume the role of an inmate and must escape from prisons of increasing difficulty.
Hand of Fate is an action role-playing roguelike deck-building game developed and published by Australian studio Defiant Development for Linux, macOS, Microsoft Windows, PlayStation 4, and Xbox One, released via early access on 7 July 2014, and then in the full release on 17 February 2015. A PlayStation Vita version was announced but ultimately cancelled due to development issues.
Everspace is a 3D space shooter with roguelike elements, developed and published by German studio Rockfish Games. It was released in 2017, while the sequel, Everspace 2 was released in 2023.
Insurgency is a multiplayer tactical first-person shooter video game developed and published by New World Interactive. It is a standalone sequel to Insurgency: Modern Infantry Combat, a community-made mod for Valve's Source engine. The game was released for Microsoft Windows, OS X, and Linux on January 22, 2014.
Dota is a series of strategy video games. The series began in 2003 with the release of Defense of the Ancients (DotA), a fan-developed multiplayer online battle arena (MOBA) custom map for the video game Warcraft III: Reign of Chaos and its expansion, The Frozen Throne. The original map features gameplay centered around two teams of up to five players who assume control of individual characters called "heroes", which must coordinate to destroy the enemy's central base structure called an "Ancient", to win the game. Ownership and development of DotA were passed on multiple times since its initial release until Valve hired the map's lead designer IceFrog and after a legal dispute with Blizzard Entertainment, the developer of Warcraft III, brokered a deal that allowed Valve to inherit the trademark to the Dota name.
The Steam Deck is a handheld gaming computer produced by Valve Corporation, designed to run the large library of games available on the Steam storefront client. Built upon the experiences gained from Valve's earlier ventures with Steam Machine and the Steam Controller, the Steam Deck integrates a custom AMD APU and SteamOS, a Linux-based operating system. The Steam Deck represents Valve's pivot towards a fully in-house hardware development approach, following the challenges faced with Steam Machines' reliance on OEMs and the requirement for native Linux game support.
