JavaScript Platformer Builder. Build a Mario-Style Game Live in Your Browser
Fill in the numbers — gravity, jump force, enemies, health, attack range and watch your platformer update live. 10 steps, real JavaScript concepts, ages 13+.
Real courses for real skills. Build actual games in JavaScript, Python, Godot, and more no gatekeeping, no paywalls, no fluff.
Not sure where to start? Follow this path — each step builds on the last.
Hands-on courses where you make a real game or project. Pick one and start all free, all beginner-friendly.
Fill in the numbers — gravity, jump force, enemies, health, attack range and watch your platformer update live. 10 steps, real JavaScript concepts, ages 13+.
Write real Python step by step and watch your game run right on the page. No downloads, no setup. 10 steps from blank screen to playable game. Ages 13+.
Three-part course MUGEN basics, Fighter Factory 3, and custom stage creation. Includes 10 downloadable files: guides, cheat sheets, project briefs, and a .DEF template.
Download a complete working Godot 4 game, open it, and start building. Platformer, Asteroids, Space Invaders, and Tower Defence each one ready to take apart.
A step-by-step interactive guide to building t-shirts, clothing, and 3D accessories in Roblox Studio using free tools — no experience needed. Designed for ages 13+.
A step-by-step guide to building a 2D platformer in Godot Engine. Characters, coins, goals, and game logic written so a complete beginner can follow along.
A full coding adventure for teens. 11 chapters covering GDScript, scenes, signals, collisions, waves, and a complete playable game. Type every line yourself.
No sponsored opinions. Here's the real picture for a beginner teen game dev.
| Engine | 💰 Cost | 📈 Learning Curve | 🎮 Best For | 👍 Verdict |
|---|---|---|---|---|
| 🤖 Godot 4 | Free forever | ⭐⭐⭐ | 2D games, indie dev, learning fundamentals | Best for beginners |
| 🟨 JavaScript | Free (browser) | ⭐⭐ | Browser games, web dev, quick prototypes | Start here |
| 🧱 Roblox Studio | Free | ⭐⭐⭐ | Multiplayer games, social platform, publishing | Great for sharing |
| ⚙️ Unity | Free tier | ⭐⭐⭐⭐ | 3D, mobile games, industry standard | After you have basics |
| 🎮 Unreal Engine | Free (5% royalty) | ⭐⭐⭐⭐⭐ | AAA visuals, Blueprints, serious 3D projects | Advanced only |
Games and projects built using the courses on this site. Want yours here? Get in touch →
Prefer to watch and follow along? These videos go alongside the written courses.
Three lanes, a fuel mechanic, a void entity with glowing tentacles, and a parallax starfield. How each system was designed and how they fit together to create tension.
The surprising complexity behind a "simple" puzzle game. Grid state management, cascade detection, combo multipliers, and why the fever mode timer changes everything.
How a personal experience with anxiety became a children's picture book about quiet courage. The writing process, character design decisions, and why the Grumble-Grit is green.
Why the whole site is hand-coded HTML and CSS. The colour system, component architecture, dark mode, and the decision to make every page a self-contained file.
Finished a course? Generate a printable completion certificate to keep or share.