PlayEveryWare
- Open roles
- 0
- Founded
- 2013
- Employees
- 11-50
- Offices
- 2
About PlayEveryWare
PlayEveryWare is an engineering-focused video game co-development and technical porting studio founded in 2013. Based in Seattle, with an integrated Japanese operation in Yokohama, it works with independent developers, AAA publishers, and console platform holders to bring games to additional platforms and maintain them after release.
The studio concentrates on the technical work behind platform development: adapting engines, improving performance, implementing online systems, and meeting console certification requirements. Its development capabilities span custom C++, Unity, and Unreal Engine, with platform experience covering PC, Nintendo Switch and Switch 2, PlayStation 4 and 5, Xbox One, and Xbox Series X|S.
Technical development and release support
Porting work includes adapting user interfaces, user experience, and controller inputs for different hardware. Performance engineering covers profiling, CPU and GPU optimization, memory and resource management, and changes to rendering pipelines. These capabilities support projects that require substantial technical adaptation as well as platform-specific implementation.
Networking services include cross-platform multiplayer, back-end account management, and integration with Epic Online Services, PlayFab, and Photon. The company also develops and maintains the open-source Epic Online Services Plugin for Unity in collaboration with Epic Games.
Its publishing support extends beyond development into title registration, store configuration, submission management, and release coordination. Patch management and ongoing live operations support provide continuity after a game reaches players.
Co-development experience
PlayEveryWare’s portfolio includes console co-development for Among Us, platform optimization and cross-platform support for Fall Guys, and console co-development and networking support for Risk of Rain 2. Other projects include console ports of Going Under and Superliminal, platform engineering for Tomb Raider: Definitive Edition, and technical co-development and console support for Valorant.
The studio has also contributed to remasters and newer releases, including Castle Crashers Remastered, Another Crab’s Treasure, and Legacy of Kain: Defiance Remastered. Across these engagements, its role centers on engineering collaboration, platform adaptation, and the technical requirements of shipping and supporting games.
More about PlayEveryWare
Founder and leadership
Thomas O'Connor founded the studio and, as of the November 2026 research, serves as CEO and Studio Director.
Open-source development
As primary author and lead maintainer of the EOS Plugin for Unity, the studio provides Unity developers with integrations for lobby matchmaking, voice communication, and Easy Anti-Cheat, alongside cross-platform multiplayer functionality.
Early history and international expansion
Initial project work and startup operations preceded the company's formal establishment, dating to 2009–2010. Its Japanese expansion received support from JETRO and Kanagawa Prefecture's Select Kanagawa NEXT initiative. The Japanese subsidiary was incorporated in October 2020 and began full-scale operations in spring 2021.
Notable credits
20 creditsOffices
Where PlayEveryWare is based
- Seattle, Washington, United States
Seattle offices
HeadquartersAbout this office
**Office** Status: active Headquarters Address: Georgetown Squared Building, 5601 6th Avenue South, Suite 378, Seattle, WA 98108, USA Global headquarters and primary engineering studio in Seattle's Georgetown neighborhood. --- **Office** Status: inactive / historical Address: 6363 7th Ave S Ste 240, Seattle, WA 98108 Former Seattle premises identified as the company's earlier address. The relocation year is not supplied.
- Yokohama, Kanagawa, Japan
Yokohama offices
About this office
**Office** Status: active Address: Park View Yokohama 2F, 1-17-1 Aioicho, Naka-ku, Yokohama, Kanagawa 231-0012, Japan Integrated Japanese regional operation providing technical production, co-development, porting, sales, and publisher support. Operated by PLAYEVERYWARE JAPAN合同会社. --- **Office** Status: inactive / historical Address: 2F Sangyo Boeki Center Bldg, 2 Yamashitacho, Naka-ku, Yokohama, Japan Initial Japanese incubator premises at IBSC Kanagawa, preceding the reported Park View Yokohama address.
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