Metaverse

ZTX

ZTX is a virtual world platform founded in 2022, where I was part of the initial team until 2025. Originally developed in Unity3D as a massive multiplayer online game for desktop, it allowed players to own virtual land, decorate homes and gardens, and craft clothing, furniture, and accessories. The game featured extensive character customization, including body shape morphing and detailed facial options, fostering a strong sense of personalization and creativity.

As development progressed, the project shifted toward a mobile-first experience focused on digital fashion, where players could purchase outfits designed by others, create unique styles, and compete in fashion challenges for high scores. This transition aligned with the rising demand for virtual identity and digital self-expression, transforming ZTX into an innovative platform for user-generated content and social interaction.

During my time on the project, I played a crucial role in both development and team coordination. I designed and implemented core gameplay systems, including the house decoration feature, planting and harvesting mechanics, mini-games, and player movement. Additionally, I was responsible for integrating key SDKs such as Firebase, Nakama, and Photon to ensure seamless multiplayer synchronization and real-time interactions. I also led collaboration between Korean and international team members, developed presentations for new feature proposals, and worked closely with backend teams to optimize data management. My contributions were instrumental in shaping ZTX as it transitioned from a large-scale desktop MMO to a dynamic mobile fashion-focused experience.

Key responsibilities included:

Implemented Features

  • Designed and developed a 3D house and garden decoration system, allowing players to customize environments with furniture pieces.
  • Implemented systems for planting and harvesting materials, enhancing gameplay interaction.
  • Created engaging mini-games to enrich the player experience.
  • Developed and optimized the player movement system, ensuring smooth navigation within the game world.
  • Integrated in-app store functionality to allow players to make purchases seamlessly.
  • Implemented an inbox and notifications system to keep players informed and engaged.
  • Ensured multiplayer synchronization for player movement and data, maintaining a smooth online experience.

Code Structure & SDKs

  • Integrated essential SDKs including Firebase, Nakama, Photon, Facebook, and IAP to enhance game functionality and user engagement.
  • Developed and integrated blockchain smart contract transaction functionality for secure and seamless in-game asset management.
  • Utilized AI systems, including Cursor AI, to create dynamic code and enhance gameplay features.
  • Designed and implemented a message bus system and dependency injection for improved code modularity and performance.
  • Developed a menu system and GUI to provide a smooth and intuitive user interface.
  • Engineered camera and particle effect layering to create a dynamic, visually engaging experience.
  • Employed modular code architecture for efficient development and scalability.
  • Managed asset bundling and addressables to optimize resource management and performance.

Design & Teamwork

  • Led coordination between the Korean and international teams, fostering effective communication and collaboration.
  • Developed presentations to showcase new features and facilitate team understanding of updates.
  • Played a key role in designing and fine-tuning game features to enhance the overall experience.
  • Collaborated cross-departmentally, ensuring alignment between design, development, and backend teams.
  • Worked closely with the backend team to manage data saving, loading, and usage, ensuring smooth functionality across the game.

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