I Built a 3D Snake Game with Three.js — Runs in a Single HTML File

I challenged myself to build a full 3D browser game with zero dependencies and no build step. Just one index.html and a Three.js CDN link. The result is Serpentine — a 3D snake game with WebGL graphics, particle effects, and mobile joystick support. 🎮 Gameplay Demo ✨ Features 3 difficulty levels — Easy, Medium, Hard WebGL 3D graphics with particle effects on food pickup Mouse, Joystick & Swipe control modes Persistent high scores per difficulty Achievement toasts at score milestones Zero dependencies — pure HTML + JS 🕹️ Controls Input Action Mouse Guide the snake WASD / Arrows Keyboard Space Pause / Resume M Switch control mode 🔗 Links 🎮 Play Live → serpentine-game.netlify.app ⭐ GitHub → github.com/S-SUJAN-S/serpentine-game 🎲 itch.io → s-sujan-s.itch.io/serpentine-3d-snake Feel free to fork it and build on top — the source is clean and readable!