Key S.

I am a game designer and developer with 10 years of experience across commercial mobile and PC game production and independent development. I bridge design and implementation—from systems, quests, levels, and dungeons to working gameplay features, prototypes, bug fixes, and optimization in Unity, Godot, and Unreal Engine. My professional background includes Punishing: Gray Raven at Kuro Games and a PC MMORPG at Guangyu Online Technology. I have taken quests, stages, levels, and dungeon content from early requirements through design, implementation, playtesting, iteration, and final delivery. WHAT I CAN HELP WITH GAME DESIGN • Gameplay, progression, and content systems for mobile and PC games • Main and side quests, mission chains, objectives, triggers, and rewards • Level and dungeon flow, combat encounters, pacing, and completion conditions • GDDs, flowcharts, configuration sheets, balancing, and implementation-ready specifications GAME DEVELOPMENT • Gameplay feature development in Unity/C#, Godot, and Unreal Engine • Bug diagnosis and fixes in existing projects • Feature implementation and production integration • Rapid prototypes and playable vertical slices • Performance profiling, optimization, refactoring, and project stabilization • Turning design documents into working game logic and builds I primarily work on MMOs, anime-style mobile games, action RPGs, and indie games for PC and mobile. CHINESE LANGUAGE SUPPORT As a native Chinese speaker, I am also available for English-to-Simplified Chinese translation, translation review and proofreading, Chinese content moderation, and data annotation following project guidelines. My game design and development background is especially relevant to game and app text, terminology, and localization review. I work async-first and communicate in written English or Chinese through clear requirements, milestone plans, task boards, annotated screenshots, progress updates, and playable builds. Send me your GDD, existing build, gameplay footage, feature list, or bug report. I will review the scope and reply in writing with the fit, key risks, and a practical next step.