• Independently designed the game's worldview, core gameplay, and combat mechanics, while planning key modules such as the card and combat systems.
• Gathered player feedback from playtests, analyzed the gaming experience and gameplay issues, and continuously refined game mechanics and interaction design.
• Conducted competitive analysis of similar titles—focusing on core gameplay and numerical design—to identify product strengths and weaknesses, applying these insights to optimize and iterate on the game demo's mechanics.

• Reviewed over 50 academic papers, public government reports, and documents from international organizations; selected relevant research evidence regarding sea levels, ocean temperatures, and extreme weather events; and constructed a project risk analysis framework.

• Used Microsoft Excel to organize and analyze 30-year time-series data across six core environmental indicators; generated trend analysis charts to identify patterns in sea-level and ocean-temperature fluctuations; and provided a data-driven basis for project risk assessment.