A publisher of video games on all platforms

Compilation Video



Veteran Publisher Mastiff Celebrates Strong Summer 2022 Lineup
Across Multiple Genres & Platforms

SAN FRANCISCO – April 14, 2022 – Publisher Mastiff is on a roll with a killer slate of titles for 2022. Starting with the 2D Souls-like The Tarnishing of Juxtia – followed by the spellbinding VR action RPG RUINSMAGUS and the ethereal 2D puzzle platformer Faerie Afterlight – 2022 is shaping up to be a memorable year for the nearly 20-year-old publisher.

With headquarters in both Japan and San Francisco, Mastiff is uniquely qualified to bring standout Japanese titles to consoles and PCs worldwide – and also to lovingly localize and market Western titles in Japan. The publisher is behind a number of well-known titles and series including the crustacean-themed brawler Fight Crab, Thai survival horror title Home Sweet Home, cute but hardcore action RPG Gurumin 3D: A Monstrous Adventure, and the Heavy Fire and Party Planet franchises.

Founded in 2002, Mastiff works closely with partners all over the world – putting the same time, effort, resources, and passion into titles from their partners as they do with titles that are developed internally. A traditional publisher through and through, this is a company where “gameplay is king” and thousands upon thousands of hours are spent in polishing alone. Mastiff goes as far as promoting games more than five years after release – unheard of even from “indie” publishers.

2022 Lineup

The Tarnishing of Juxtia / Actual Nerds
Platform: Steam

Featuring highly-detailed pixel art, stunning environments, dangerous traps and terrifying Tarnished bosses, The Tarnishing of Juxtia delivers an immersive, unforgettable experience to ‘Souls’ fans looking for a new 2D fix. The game combines dark fantasy visuals and a hauntingly beautiful score with challenging 2D action-RPG gameplay – along with an innovative Energy Rush system and a staggering variety of weapons, armor sets, and abilities.

RUINSMAGUS / CharacterBank
Platform: Meta Quest / Steam

The beautiful, anime-inspired JRPG world of RUINSMAGUS is brought to life through immersive VR mechanics and perfectly-tuned controls. An engrossing narrative, a heartwarming musical score, challenging dungeons, and well-known Japanese voice actors make RUINSMAGUS the breakthrough VR title of 2022.

Faerie Afterlight / Clay Game Studio
Platform: Steam

Developed in Indonesia, the beautiful, stylized platformer Faerie Afterlight dazzles with responsive controls, surreal visuals bursting with imagination, and a moving soundtrack that perfectly frames the wistful world of Lumina and player characters Kimo and Wispy.

“Video games have always been in my blood,” says Bill Swartz, president and CEO of Mastiff. “Right after college, I was employee #28 at Koei in Yokohama. In fact, I sat two seats away from Yoichi Erikawa – Koei’s president at the time and now chairman. From there, I set up Koei America. Later on, I had the privilege of running Activision Japan and getting to know the Japanese game development community. After 11 years, I left Activision Japan to return to the U.S. – but I missed being in the game industry. It was obvious that there were some amazing games in Japan that needed to be shared with the world, but few publishers were willing (or able) to give them the localization or support they needed. As they say, the rest is history!”


Summer 2022 Lineup Video








The Tarnishing of Juxtia

Screenshots, GIFs & Logos (March 2022)







YouTube (Japanese with English subtitles)

Download (Japanese only)

Screenshots, GIFs & Logos





Faerie Afterlight

Gameplay Trailer

Screenshots & Logos



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About Mastiff
Mastiff is a publisher of video games on all platforms. Founded in 2002 with headquarters in San Francisco and Tokyo, the company has released titles in virtually every genre – including action, adventure, RPG, FPS, party, horror, and music. To learn more about Mastiff, please visit

The Tarnishing of Juxtia © 2022 ACTUAL NERDS LLC. Published by Mastiff LLC under license from ACTUAL NERDS LLC. All rights reserved.

RUINSMAGUS © 2022 CharacterBank Inc. Published by CharacterBank, and co-published under license by Mastiff. All rights reserved.

Faerie Afterlight © 2022 Clay Game Studio. Published under license by Mastiff. All rights reserved.

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