
Jaeho worked on the planetarium/lib9c repository, delivering a series of data-driven content updates and balance improvements over four months. He managed and updated multiple CSV data sheets, introducing new items, adjusting statistics, and refining game progression to support evolving gameplay requirements. His approach emphasized robust data management and file organization, including the removal of obsolete entries to streamline future updates and reduce maintenance overhead. By leveraging skills in data management, game data balancing, and version-controlled workflows, Jaeho ensured consistent data integrity and alignment across releases, enabling smoother deployments and reducing the risk of post-release issues in the game’s content pipeline.

September 2025: Delivered a focused Lib9c data update for v200360, aligning core content across multiple systems and enabling the latest release content. The update touched collection sheets, summon sheets, event dungeons, and synthesis recipes, incorporating new entries and balance adjustments to ensure consistency and preserve gameplay integrity. This effort reduces data drift, supports a smooth player experience, and underpins ongoing balance and release readiness.
September 2025: Delivered a focused Lib9c data update for v200360, aligning core content across multiple systems and enabling the latest release content. The update touched collection sheets, summon sheets, event dungeons, and synthesis recipes, incorporating new entries and balance adjustments to ensure consistency and preserve gameplay integrity. This effort reduces data drift, supports a smooth player experience, and underpins ongoing balance and release readiness.
2025-08 Monthly Summary — Planetarium/lib9c: Delivered a data-driven Game Data Refresh for the 2025 content release, with comprehensive updates to rewards, points, waves, costs, and buffs to reflect the new game data. Achieved data alignment by applying the latest v200350 data, fixing data drift and ensuring accuracy for deployment. This work enhances content fidelity, reduces post-release hotfix risk, and accelerates release readiness. Technologies demonstrated include data-driven pipelines, version-controlled data updates, and clear commit traceability.
2025-08 Monthly Summary — Planetarium/lib9c: Delivered a data-driven Game Data Refresh for the 2025 content release, with comprehensive updates to rewards, points, waves, costs, and buffs to reflect the new game data. Achieved data alignment by applying the latest v200350 data, fixing data drift and ensuring accuracy for deployment. This work enhances content fidelity, reduces post-release hotfix risk, and accelerates release readiness. Technologies demonstrated include data-driven pipelines, version-controlled data updates, and clear commit traceability.
In July 2025, delivered a data-driven content update for planetarium/lib9c that expands gameplay through new items, adjusted statistics, and broader stage progression and recipes. This release was enabled by CSV data changes and supports faster iteration and more balanced gameplay across game areas.
In July 2025, delivered a data-driven content update for planetarium/lib9c that expands gameplay through new items, adjusted statistics, and broader stage progression and recipes. This release was enabled by CSV data changes and supports faster iteration and more balanced gameplay across game areas.
June 2025 (2025-06) – Monthly summary for planetarium/lib9c Key features delivered - Game data content update and balance (v200330): Updated multiple CSV sheets (CollectionSheet, CostumeItemSheet, EventDungeonSheet, EventDungeonStageSheet, EventScheduleSheet, ItemRequirementSheet, SynthesizeWeightSheet, WorldBossListSheet, etc.), adding new entries, adjusting existing values, and refining numerical data to balance gameplay and expand content. Commits included: e2f41c2067ab91eb36f6a66b75840ae3463ed98c and 5449ca38f2b2e2aa5acdf97de3955bc3b8ba81d0. - Data cleanup and restructuring: Removed obsolete entries and meta files from multiple directories (Summon, WorldAndStage, WorldBoss) to streamline data layout and reduce clutter. Commit: 94ceb5f4df220824eb536f24473ad68dcf67e33f. Major bugs fixed - Improved data integrity and balance consistency across core sheets for v200330; eliminated stale data and reduced risk of misconfigurations by removing obsolete files. Overall impact and accomplishments - Enabled content expansion and balanced gameplay for v200330 while significantly reducing data maintenance overhead. The data cleanup reduces noise, simplifies future updates, and improves QA readiness and release confidence. Technologies/skills demonstrated - Data-driven game balancing, CSV data management across multiple sheets, version-controlled data updates, repository hygiene, and cross-functional data coordination with clear change traceability through commit history.
June 2025 (2025-06) – Monthly summary for planetarium/lib9c Key features delivered - Game data content update and balance (v200330): Updated multiple CSV sheets (CollectionSheet, CostumeItemSheet, EventDungeonSheet, EventDungeonStageSheet, EventScheduleSheet, ItemRequirementSheet, SynthesizeWeightSheet, WorldBossListSheet, etc.), adding new entries, adjusting existing values, and refining numerical data to balance gameplay and expand content. Commits included: e2f41c2067ab91eb36f6a66b75840ae3463ed98c and 5449ca38f2b2e2aa5acdf97de3955bc3b8ba81d0. - Data cleanup and restructuring: Removed obsolete entries and meta files from multiple directories (Summon, WorldAndStage, WorldBoss) to streamline data layout and reduce clutter. Commit: 94ceb5f4df220824eb536f24473ad68dcf67e33f. Major bugs fixed - Improved data integrity and balance consistency across core sheets for v200330; eliminated stale data and reduced risk of misconfigurations by removing obsolete files. Overall impact and accomplishments - Enabled content expansion and balanced gameplay for v200330 while significantly reducing data maintenance overhead. The data cleanup reduces noise, simplifies future updates, and improves QA readiness and release confidence. Technologies/skills demonstrated - Data-driven game balancing, CSV data management across multiple sheets, version-controlled data updates, repository hygiene, and cross-functional data coordination with clear change traceability through commit history.
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