Custom Engine Game Development Studios

A Shell in the Pit is a game audio studio specializing in sound design and music for indie games. Known for their work on Untitled Goose Game, Night in the Woods, and Wandersong.

Dutch studio specializing in game porting and co-development. Extensive experience with Unity, Unreal, and proprietary engines across all platforms.

All Correct Games is a Russian-origin localization studio offering translation, voice-over, and LQA services in 40+ languages. They specialize in EFIGS, CJK, and Eastern European languages. Notable clients include Wargaming, Gaijin Entertainment, and 4A Games.

Altagram is a Berlin-based game localization company specializing in translation, localization QA, voice-over production, and culturalization services. They work with 50+ languages and have localized games for CD Projekt Red, Paradox Interactive, and Riot Games. Notable projects include Cyberpunk 2077, Divinity: Original Sin 2, and League of Legends.

Andovar provides game localization services in 70+ languages, specializing in EFIGS, CJK, and Asian languages. They offer translation, voiceover, and LQA services for games of all sizes.

Big Games Machine is a UK-based video game marketing and PR agency helping indie and AA developers with press relations, influencer campaigns, and community building.

Bigpoint is a leading global online game developer and publisher headquartered in Hamburg, Germany. They design high-quality games for all gamer segments across browser and mobile platforms.

Blind Squirrel Games is a US-based co-development studio founded in 2010 with approximately 100 specialists in California. They offer design, engineering, and art production services, with a strong focus on Nintendo Switch ports. Notable projects include Mass Effect: Legendary Edition. Clients include 2K, Disney, and Electronic Arts.

Portuguese studio specialized in porting games to PlayStation, Xbox, and Nintendo platforms. Known for high-quality ports of indie titles.

Blur Studio is an American VFX and computer animation company specializing in CGI visual effects and video game cinematics, located in Culver City, California.

Bohemia Interactive's motion capture studio provides professional mocap services for games and film, with state-of-the-art facilities in Czech Republic.

BugRaptors is an India-based testing studio offering affordable and high-quality testing services, specializing in audio/video testing and AR/VR game applications.

Catness Game Studios offers game porting services bringing games to PlayStation 4/5, Xbox One/Series X|S, and Nintendo Switch. They specialize in console certification and optimization.

CCC International is one of the most reliable partners in the game industry globally, with more than 10 years of gaming experience providing game translation and localization services.

Cloutboost is a gaming marketing agency specializing in influencer marketing, user acquisition, and community growth for game publishers and developers.

Croteam is one of Croatia's pioneers in the gaming industry, founded in 1992. They developed the award-winning Serious Sam series and The Talos Principle, creating more than 26 games. They offer co-development and technical services.

d3t is an award-winning co-development studio of 180+ talented game developers delivering work-for-hire video game development. Part of Keywords Studios, credited on EA SPORTS FC, Hogwarts Legacy, LEGO Star Wars: The Skywalker Saga, and The Witcher 3.

German developer known for Lords of the Fallen and The Surge. Offers co-development services for action RPGs and Souls-like games.

Devoted Studios offers Unity & Unreal Engineering, porting & platform support, performance optimization, feature & systems engineering, and live operations support. Experience with Xbox, PlayStation, Nintendo Switch, PC, Mobile, VR, and Cloud.

Dhruva Interactive, now part of Rockstar Games, is one of India's largest game art studios. They specialize in 3D art, environment design, and visual effects for AAA games.

Dynamedion is a German audio production company based in Mainz, specializing in music composition and sound design for video games, films, and television. Founded in 2000, the company has a team of around 50 professionals and has completed over 4,500 projects. Notable projects include Age of Empires IV and Harry Potter: Magic Awakened.

UK studio now part of Keywords Studios. Specializes in AAA co-development with expertise in racing games and action titles.

Evolve PR is a Los Angeles-based video game marketing and PR agency. They offer PR campaigns, influencer relations, social media management, and launch strategies. Clients include PlayStation, 2K Games, and Bandai Namco.

Swedish developer known for Warhammer: Vermintide and Darktide. Specializes in cooperative action games with deep melee combat systems. Offers co-development partnerships.

Polish studio known for Shadow Warrior and Trek to Yomi. Specialists in action games with stylish combat and unique art direction.

Formosa Interactive is a Los Angeles-based audio production studio offering sound design, music, voice production, and audio implementation for games.

Finnish game developer known for the Trine series and Starbase. Offers development services with expertise in physics-based puzzles and multiplayer experiences.

Game If You Are is a games marketing agency specializing in user acquisition, community building, and influencer marketing. They focus on indie and AA games, offering ASO, paid UA, and social media strategies. Based in the UK with global reach.

GameMarketingGenie is a full-service games marketing agency offering UA campaigns, ASO, creative production, influencer marketing, and community management. They specialize in mobile games but work across all platforms.

Gamesight provides influencer marketing and analytics services for games, helping publishers track campaign performance and optimize their marketing efforts.

Founded in 2002 in Shanghai as the first independent studio in China focused on outsourcing. Staffed by senior ex-technical staff from Ubisoft Shanghai.

GLOC Media specializes in Asian game localization, offering translation, voice-over, and culturalization services for Japanese, Chinese, and Korean markets.

Goodbye Kansas Studios offers full production services for game cinematics, in-game cutscenes, and key arts. Services include character design, modeling, rigging, animation, motion capture, VFX, and full CG trailers.

Korean game company listed on NASDAQ. Known for Ragnarok Online franchise with extensive mobile and PC game development expertise.

Haemimont Games is a Bulgarian game development studio known for the Tropico series and Surviving Mars. They offer co-development and work-for-hire services.

Hexany Audio is a Los Angeles game audio studio specializing in sound design, sound effects, music, and audio programming. Their team of 22 creatives work onsite at a 7,000 square foot state-of-the-art studio, producing sound and music for major game franchises worldwide. Notable projects include Destiny 2, New World, and League of Legends.

Spanish outsourcing studio specializing in iGaming and slot game production. Provides turnkey slots, concept art, 2D/3D art, animation, and unique mathematics design.

High Vibe PR is a boutique gaming PR agency helping studios and publishers with press relations, influencer partnerships, and strategic communications.

ICO Partners is a European games marketing and PR agency with 20+ years of experience. They provide strategic marketing, PR campaigns, event management, and market research. Clients include Paradox Interactive, Focus Entertainment, and Koch Media.

Imaginarium Studios is a pioneering performance capture and virtual production company at Pinewood Studios UK, formed in 2012 by Andy Serkis. Premium motion capture for games and film.

Indie Boost is a game marketing agency focused on helping indie developers with user acquisition, store optimization, and launch strategies.

Danish developer of the Hitman franchise and upcoming Project 007. Known for immersive sandbox gameplay and stealth mechanics.

Iron Galaxy Studios is a Chicago-based technical outsourcing studio founded in 2008 with 250+ specialists. They specialize in porting, optimization, and full co-development. Notable projects include Killer Instinct (Season 2 & 3), Skyrim (Switch), Diablo III (Switch), 7 Days to Die, and Spyro Reignited Trilogy.

14+ years of gaming expertise with 550+ titles tested. 1000+ devices available including 550+ mobile devices, consoles, VR, and PCs.

Jaleo PR is an indie games PR agency designing personalized storytelling-based, content-driven PR multimedia strategies with years of games industry experience.

Brazilian studio known for Blazing Chrome and Oniken. Specialists in retro-style action games with pixel art and chiptune audio.

Keywords Studios is one of the largest outsourcing players in the world, with over 70+ studios in 20+ countries. They offer nearly every service imaginable—art, engineering, localization, QA, audio, and marketing. With 13,000+ specialists globally, they have worked on titles like Alan Wake Remastered, Still Wakes the Deep, Goat Simulator 3, Mass Effect: Andromeda, Mafia 3, and For Honor.

Klabater has ported 24 games to PlayStation, 23 games to Xbox and 15 games to Nintendo Switch since 2017. They offer full porting services including QA, certification, and ongoing support.

Latis Global provides game localization and QA services with a focus on Asian languages. They offer translation, LQA, and culturalization for mobile and PC games.

Malaysian art studio and frequent co-dev partner for Capcom and Square Enix. Known for character work with impressive micro-detail and polish.