Grey Shark Apps
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About Grey Shark Apps
Grey Shark Apps is an independent game development studio and technology consultancy based in Warsaw, Poland. Its work combines mobile games, educational interactive experiences and advisory services for businesses and local government. The company’s activities have expanded from digital game development into applications of modern technology and sustainable development.
Games and interactive experiences
The studio’s early mobile production, Xoli’s Adventure, evolved into Mechs - Tower Defense Strategy. Set on the alien planet Naru, the game puts players in command of customizable battle mechs and defensive turrets against a rogue artificial intelligence known as Mainframe. Its design includes offline play and separate difficulty and challenge modes.
Alongside its digital games, Grey Shark Apps is developing an educational board game about ESG—environmental, social and governance—criteria. The turn-based strategy project simulates city administration and sustainable urban governance, extending the studio’s game design work into learning about municipal decision-making.
Education and technology consulting
Grey Shark Apps provides workshops covering game design, storytelling, game industry marketing and non-linear narrative prototyping. These activities connect practical game development with educational uses of interactive media.
Its consultancy serves small and medium enterprises and local government authorities. Areas covered include ESG strategy implementation, Internet of Things applications and the integration of artificial intelligence tools into business workflows. Practical workshops also address artificial intelligence in game development and IoT innovation.
The company maintains a corporate portal for its consulting and training activities and a dedicated games landing page for its mobile work. Together, these activities reflect an operating model that combines game production, educational projects and technology advisory services.
More about Grey Shark Apps
Founder and leadership
Jacek Krzysztof Pietruszka incorporated the company in February 2018 and is identified in the supplied registry research as a management board member and shareholder. Its original primary Polish business classification was PKD 58.21.Z, computer game publishing.
Production collaboration
Audio contractor Jakub Juchniewicz created sound design for Xoli’s Adventure in 2019.
Teaching methods and responsible technology
The studio’s narrative workshops use Twine to introduce non-linear storytelling prototypes. Its business training also addresses the ethical integration of artificial intelligence into everyday workflows.
Notable credits
3 creditsOffices
Where Grey Shark Apps is based
- ul. Wąwolnicka 4/22, 04-023 Warsaw, PolandWarsaw, Masovian Voivodeship, Poland
Warsaw office
HeadquartersMain studio headquarters, registered corporate office and development center.
Open roles
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