The Collector System offers players an engaging progression mechanic where they collect, submit, and turn in various game items to receive permanent character bonuses and category-completion rewards.

Key Features
- Multi-Category & Stage Progression: Organize turn-ins into multiple thematic categories (e.g., Spirit Stones, Fish) with chained stages that unlock sequentially upon completing prerequisites (
required_category_id). - Dual-Layer Reward System:
- Per-Mission Rewards: Each completed delivery provides an individual permanent stat boost (e.g., Penetration, Critical, Max HP, Defense, Class Bonuses).
- Stage-Completion Bonuses: Finishing all missions within a category grants an additional powerful milestone bonus (such as flat primary attributes like STR/DEX/INT or percentage damage boosts).
- Delivery Chances & Boosters: Each stage can feature its own base delivery success rate, expandable via dedicated booster items (
chance_item). - Delivery Cooldowns & Reset Items: Configurable delivery intervals per stage, with full support for time-reduction or instant-reset items (
time_item). - Modern & Intuitive UI: Features category selection, stage overview with completion bonuses, real-time collection progress bars, slot-based delivery counters, and a consolidated active bonuses preview.
- Fully Data-Driven: Easily configurable via structured JSON—add categories, missions, requirements, level caps, item costs, and reward affects without modifying core logic.