
4mm Games was a New York–based video game development company founded in 2008 by two founders of Rockstar Games, Jamie King and Gary Foreman along with former Image Metrics exec Nicholas Perrett, and Def Jam Enterprises, Warner Music Group and NBC executive Paul Coyne. 4mm was founded with the intent of bringing the experience of Constantly Connected Gaming to the next generation of gamers. OBE and former NCSoft CEO Geoff Heath was a member of the advisory board and offers strategic input.

Activision Blizzard, Inc. is an American video game holding company based in Santa Monica, California. The company was founded in July 2008 through the merger of Activision, Inc. and Vivendi Games. The company is traded on the NASDAQ stock exchange under the ticker symbol ATVI, and since 2015 has been one of the stocks that make up the S&P 500. Activision Blizzard currently includes five business units: Activision Publishing, Blizzard Entertainment, King, Major League Gaming, and Activision Blizzard Studios.

Apogee Software, LLC is an American video game publisher based in Rowlett, Texas. The company was founded by Terry Nagy in 2008 after he acquired the rights to the name and logo from 3D Realms, which had used both previously.

Armature Studio, LLC is an American video game development studio in Austin, Texas. In April 2008, after completing Metroid Prime 3: Corruption in 2007 for Nintendo, former game director Mark Pacini and art director Todd Keller left Retro Studios to start Armature, which was founded in September 2008. Armature's first game was porting Metal Gear Solid HD Collection to the PlayStation Vita in 2012. In April 2013, Warner Bros. Interactive Entertainment announced that Batman: Arkham Origins Blackgate would be developed by Armature as their first new work and released for both the PlayStation Vita and the Nintendo 3DS on October 25, 2013. The third game developed was the PlayStation Vita edition of Injustice: Gods Among Us.

Die Gute Fabrik is a Danish independent game developer based in Copenhagen, Denmark. Founded in 2008 by artist Nils Deneken, and joined by game designers Douglas Wilson and Christoffer Holmgård, the studio is now led by writer Hannah Nicklin.
DrinkBox Studios Inc. is a Canadian video game developer based in Toronto. The company was founded in April 2008 by Chris Harvey, Ryan MacLean and Graham Smith, three programmers previously employed by Pseudo Interactive, which closed earlier that year. DrinkBox is best known for the Guacamelee! series of games.

En Masse Entertainment, Inc. was an American video game publisher. Founded in June 2008, the company was based in Seattle, Washington and is best-known for publishing massively multiplayer online role-playing game TERA, which was developed by parent company Bluehole. The original En Masse leadership team had extensive experience in the video game industry at leading companies, including Blizzard Entertainment, Microsoft, NCsoft, ArenaNet, and Electronic Arts. In January 2013, Chris Lee and Soo Min Park became chief executive officer and chief operating officer, respectively. On November 5, 2018, Bluehole and its subsidiaries, which include En Masse, were rearranged horizontally under a new parent company, Krafton Game Union. En Masse announced on August 17, 2020, that it had begun ceasing operations.

Fatshark is an independent video game development studio based in Stockholm, Sweden. The studio is located in Stockholm close to the Southern Station. Fatshark acted as a subcontractor for several AAA titles for PC and consoles, and the studio also develops its own games.

Hello Games Ltd is a British video game company based in Guildford, England. The company was founded by Sean Murray, Grant Duncan, Ryan Doyle and David Ream in February 2008 and has developed the Joe Danger series, No Man's Sky, and The Last Campfire.

Jackbox Games, Inc. is an American video game developer based in Chicago, Illinois, best known for the You Don't Know Jack series of quiz-based party video games and The Jackbox Party Pack series. Founded by Harry Nathan Gottlieb, the company operated as Jellyvision Games from 1995 until its closure in 2001. After seven years of dormancy, Jellyvision Games was revived in 2008, and the company rebranded as Jackbox Games in 2013.

Machine Zone, Inc. (MZ) is an American privately held technology company, founded in 2008 and based in Palo Alto, California. The company is best known for its widely advertised freemium mobile MMO strategy games Game of War: Fire Age and Mobile Strike, which have both simultaneously been ranked among the top ten highest-grossing mobile games.

Redbana Corporation is a publisher of online games and MMORPGs.

Robomodo was an American independent video game developer based in Chicago, Illinois. Robomodo was formed in early 2008 by former employees of Midway Games and EA Chicago. They are best known for being the developer of several post-Neversoft games in the Tony Hawk franchise from Tony Hawk: Ride (2009) to Tony Hawk's Pro Skater 5 (2015), most of which were met with varying degrees of negative reception from critics and fans alike. Nearly a year after Tony Hawk's Pro Skater 5 was released, Robomodo went out of business.

Rockstar Dundee Limited is a British video game developer based in Dundee. Founded in April 2008 by Gary Liddon, Billy Thomson and Gareth Noyce, the company is best known for developing Crackdown 2, released in 2010. In 2020, Ruffian Games was acquired by Take-Two Interactive and became part of Rockstar Games as Rockstar Dundee.

Rollingmedia Limited, doing business as Roll7, is a British video game developer based in London, England. The company was founded by Simon Bennett, Tom Hegarty, and John Ribbins in 2008, as a sister project to Rollingsound. Initially, they were developing Dead Ends, a role-playing video game as tie-in with Channel 4's anti-knife crime campaign, but it was cancelled later on. From 2009 to 2011, they developed five games for NeuroSky's brain wave measurement headset, MindWave, including the ADHD treatment game Focus Pocus. In 2012, Roll7 released mobile game Gets to the Exit. The studio gained acclaim with its 2014 skateboarding-focused sports game OlliOlli, which received multiple awards and nominations in different categories, and won the BAFTA Award for video games in the category "Sport", at the 11th British Academy Games Awards. The game was succeeded by OlliOlli2: Welcome to Olliwood in 2015, and the same year, Not a Hero was also released.

Runic Games was a Seattle-based American computer game company formed by Travis Baldree, Max Schaefer and Erich Schaefer, Peter Hu, and the Flagship Studios Seattle team responsible for Mythos. It was a subsidiary of Perfect World. In 2009, the company released Torchlight, a single-player action role-playing game. They released a sequel, Torchlight II, in 2012. It was at this time the developers revealed they were no longer pursuing plans to create an MMO in the Torchlight universe.

Signal Studios is a developer of both video games and interactive software applications. The studio was founded by industry veterans, with experience working at some of the world's top studios and publishers, combining many years of knowledge across all disciplines of the games industry.

Spiders is a French video game developer founded by developers who previously worked on the game Silverfall. They specialize in action role-playing games, owing to their previous experience. On July 2019, French publisher Bigben Interactive, now known as Nacon, announced that they had acquired Spiders.

Squad is a Mexican multimedia company based in Mexico City and founded in 2008. The main business of Squad is to provide digital and interactive services to customers like The Coca-Cola Company, Hewlett-Packard, Sony, Samsung and Nissan. This included creating websites, guerrilla marketing, multi-media installations, and corporate-image design.

Star Theory Games was an American video game developer based in Bellevue, Washington. Founded in March 2008 by Bob Berry and Jonathan Mavor, it released its first title, Monday Night Combat, in 2010 to positive reviews. The company assumed the name Star Theory Games in 2019. It wound down in March 2020 after the contract for its game Kerbal Space Program 2 was canceled by publisher Private Division, which set up a new studio and hired a large portion of Star Theory's staff in December 2019 to continue the game's development, before Star Theory and its remaining staff became unable to secure new publishing agreements as a result of the COVID-19 pandemic.

Supermassive Games is a British video game developer based in Guildford, Surrey.

Tapulous, Inc. was an American software and video game developer and publisher headquartered in Palo Alto, California. It was a wholly owned subsidiary of The Walt Disney Company as part of Disney Interactive's Disney Mobile unit. The company's most profitable products were the Tap Tap series of music games, which surpassed thirty-five million downloads.

Tiger Style is an American independent video game studio. The studio was founded by industry veterans Randy Smith and David Kalina in 2008. Their first title Spider: The Secret of Bryce Manor, was released in August 2009, followed by Waking Mars in 2012. They are a fully independent collective of designers, artists, and musicians. The studio is known for working remotely, and is known for their cooperative pay structure, distributing royalties among the game production teams.

TiMi Studios, a subsidiary of Tencent Games, is a video game development studio headquartered in Shenzhen, China and offices in Los Angeles, Chengdu, and Shanghai. Founded in 2008 as Jade Studio, TiMi comprises several studios with different areas of expertise and develops games in different genres for PC, mobile, and Nintendo Switch, including Honor of Kings, Arena of Valor, and Pokémon Unite.

Titan Studios was an American video game developer founded in June 2008 by the core team previously working as DarkStar Industries. It includes former members with experience at Epic Games, Ubisoft, Blizzard Entertainment and Lionhead Studios. It was a subsidiary of Yingpei Games and dissolved in 2011.

Turbo Tape Games, started in 2008, is an independent game developer in western Norway. The company also produces educational digital experiences, but focuses on entertainment games as its primary objective. Naval War: Arctic Circle, released in 2012, was the company's first major game, providing a real time strategy experience of modern naval warfare. Turbo Tape Games has worked on projects for clients such as the Bergen Science Centre VilVite, Sintef, TV2 News, Bodø University College, Bergen Museum amongst others.

Valhalla Game Studios International Ltd. is a video game development, entertainment, and holding company.

Vast Studios is a casual video game developer founded in 2008 and headquartered in Toronto, Ontario, Canada. They are the developer of 3Tones, a match 3 game nominated for RealNetworks' Great Game Awards as well as the Nightfall Mysteries series. They also recently announced a partnership with National Geographic to make a game based around the Salem Witch Trials.

Xona Games is an independent Canadian video game developer founded in 2008 and headquartered in Yarmouth, Nova Scotia, Canada.

Shenzhen Zhongqingbaowang Interaction Network Co Ltd or ZQGame is a Chinese company that makes massively multiplayer online games as well as other browser games and mobile games. Prior a subsidiary of a company that makes servers, it was listed on the Shenzhen Stock Exchange in 2010. In 2013, ZQGame announced a joint venture with Shanda located in the Shanghai Pilot Free-Trade Zone.

Zynga with Friends is a video game developer founded in 2008 by brothers Paul Bettner and David Bettner, and their cousin Michael Chow. In November 2008, Newtoy, Inc. released its first game for the iPhone and iPod touch, Chess with Friends, an asynchronous multiplayer game released for the Apple App Store. In August the following year, it released its second game for iPhone and iPod touch, Words with Friends, another asynchronous multiplayer game with gameplay similar to Scrabble, which ultimately became their best known game. In November 2010, the company was acquired by Zynga for $53.3 million and an undisclosed amount of stock. In December 2010, the studio was rebranded as Zynga with Friends. Newtoy was the fourteenth company to be acquired by Zynga during its peak years.