Earth Clicker
Inspiration
Inspired by classic idle clickers like Cookie Clicker, we asked: "What if you could play console-quality 3D games directly in your Reddit feed?" Earth Clicker was born to answer that question.
What it does
Earth Clicker is a 3D idle game that runs entirely inside a Reddit post. Players click a rotating Earth to make it grow, collect green orbital rings for bonus points. It's a pure, addictive gameplay in your feed.
How we built it
Tech Stack:
- Devvit - Reddit's developer framework for custom posts
- Three.js - WebGL library for 3D graphics
- TypeScript - Type-safe game logic
- Redis - Persistent scores and leaderboards
- CSS3 - Mobile-first UI with glassmorphism
Architecture:
- Three.js renders the 3D Earth scene in Devvit's WebView at 60fps
- Raycasting detects clicks on Earth and collectibles
- Game state persists to Redis every 5 seconds
- Fixed HUD with safe-area CSS for mobile devices
- Reddit API integration for one-click UGC sharing
We optimized geometry (32-segment spheres), implemented touch controls for mobile, and used Redis sorted sets for efficient leaderboards.
Challenges we ran into
Performance on Mobile - Three.js struggled at 60fps. We optimized by reducing polygon count, implementing frustum culling, and using efficient materials.
Touch Detection - Mobile raycasting was inconsistent. Fixed by normalizing touch coordinates and adding separate touch event listeners.
Safe Areas - UI was hidden behind iPhone notches. Solved with env(safe-area-inset-*) CSS and viewport-fit=cover.
State Persistence - Used Redis for persistence.
Accomplishments that we're proud of
Perfect mobile experience - Works on notched iPhones, Android, tablets, desktop Pixel-perfect UI - Glassmorphism effects, gradient animations, particle feedback
What we learned
Technical: WebGL optimization is critical for mobile.
Design: Visual feedback makes clicks satisfying. Simplicity beats complexity.
What's next for Earth Clicker
Short-term:
- Daily challenges with unique objectives
- Weekly tournaments with prizes
- Planet customization (Mars, Moon, Jupiter skins)
- Sound effects and ambient music
Built with ❤️ for Reddit's Developer Community
🌍 Click the Earth. Change Reddit forever.
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