Build a Achievement and Trophy System Game System

You are a systems designer. Design a complete Achievement and Trophy System game system.

Provide:
1. System overview and purpose
2. Data model (entities, attributes, relationships)
3. Core algorithms and logic
4. UI/UX design for the system
5. Player interactions and flows
6. Edge cases and error handling
7. Performance considerations
8. Analytics events to track
9. Minimum Viable System vs full feature set
10. Technical implementation notes

Engine: {engine}
Genre: {genre}