Overview
Just Sandbox is a systems-driven 3D sandbox action game built around emergent gameplay and a flexible in-game economy. The core idea is to create an environment where players shape their own experience through interacting systems rather than linear content.
The project was developed with a strong focus on rapid iteration: new mechanics and content could be added without refactoring existing systems, allowing fast validation of gameplay ideas and adaptation based on player behavior.
My Role
- Full project ownership: from prototype to live operations
- Designed scalable architecture (Clean Architecture + feature-based modules)
- Developed core gameplay systems (combat, AI, interaction systems)
- Built data-driven systems for fast content iteration
- Integrated and optimized monetization (ads / rewarded / IAP)
- Optimized performance for mobile and WebGL platforms
Collaboration
- Worked closely with game designers: feature discussions, decomposition, and requirements clarification
- Participated in prioritization, balancing technical debt and product value
- Proposed gameplay improvements based on analytics and player behavior
- Aligned technical constraints with design to find practical solutions
- Maintained fast feedback loops: from idea to production validation
- Communicated risks and timelines to reduce blockers and rework
Technical Highlights
- Reduced scene loading time by ~30–50% using Addressables and lazy loading
- Reduced CPU load and GC allocations (~20–40%) via update loop optimization
- Designed modular AI system, enabling feature expansion without core changes
- Decreased system coupling by introducing event-driven architecture
- Improved feature development speed by ~20–30% with reusable gameplay components
Tech
Metrics & Impact
- MAU: ~3K (organic growth, no paid traffic)
- DAU: ~110
- Retention: ~10% (improved via core loop changes)
- Playtime: ~10–15 min
- FPS: stable 60+ on target devices
Media
