I've created a complete space-themed puzzle game about growing plants in varying gravity conditions. Here's what's included:

**Core Features:**
- **Gravity Manipulation**: 9-directional gravity control (8 directions + zero-gravity) with visual field indicators
- **Plant Growth Mechanics**: 4 plant types with unique growth rates, resources, and visual effects
- **Resource Management**: Energy and resource system with costs and regeneration
- **Environmental Challenges**: Progressive challenge system across multiple levels

**Gameplay:**
- Click/tap to plant seeds (costs resources & energy)
- Click mature plants to harvest them for resources
- Use gravity controls to move plants around the space
- Create hybrid plants by combining two mature plants
- Complete challenges to level up and earn bonuses

**Plant Types:**
- 🌱 Basic Seed (10 cost) - Fast growing starter
- 🌸 Gravity Flower (25 cost) - Medium resource yield
- 🌳 Space Tree (40 cost) - High resource yield
- 💎 Crystal Plant (60 cost) - Premium resource generator
- 🌺 Hybrid (created via lab) - Special combined plant

**Special Systems:**
- **Seasonal Cycles**: 4 seasons that affect growth and resource rates
- **Hybridization Lab**: Combine plants to create powerful hybrids
- **Zero-Gravity Zones**: Floating areas with special physics
- **Progressive Challenges**: Multiple objectives to complete
- **Ecosystem Creation**: Build complex gardens with branching plants

The game features natural green colors (#228B22), space blacks, and gravity field visualizations. Fully mobile-responsive with touch controls!