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.
Scratch, JavaScript, Python, C++, Unity, Unreal, Godot, GameMaker, MUGEN, OpenRCT2, Blender, TinkerCAD and more, printable quick-reference guides for whatever you're building.
A full toolkit for indie game devs, sprite animator, sfx generator, level designer, palette picker, particle designer and a dozen more. No installs, no accounts, all free.
An 8-episode series teaching real CAD skills, from a simple fidget spinner to geometric shapes, all in the free browser-based TinkerCAD editor. No printer required to follow along.
A real coding introduction using Minecraft as the playground, write Java to add custom items, blocks, food, mobs and tools to your own game. Starter files included.
Characters, movesets, stages and AI opponents, MUGEN is a free fighting game engine that's been used by hobbyists for decades. Learn the basics and build your own roster.
Finished a course? Generate a printable completion certificate to keep or share.