Build Your Own Games with AI

From Zero to Published: Make 3D, Mobile and VR Games with Claude Code, Free Tools and No Coding Background

Go from an empty folder to published 3D, mobile and VR games by directing an AI coding assistant, one feature at a time.

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What you get

A complete first game built in one afternoon, with every prompt in order
Prompt patterns that make an AI coding assistant build exactly what you mean
3D with Three.js: cameras, lights, simple physics and GLB models
Touch controls and performance fixes that keep phones smooth
VR and mixed reality for Meta Quest with WebXR, plus comfort rules
Asset licensing made clear: AI 3D models, CC0 libraries and AI music
Publishing on your own site, itch.io, CrazyGames and the Meta Horizon Store
A 30-day plan to ship three games and 50 ready-to-use prompts

You have game ideas. You do not have a computer science degree. This book shows you how to close that gap with an AI coding assistant, step by step, and put real games in front of real players on desktop, phones and Meta Quest headsets.

Written by the creator of Brojek Games, who builds 3D browser games, mobile games, VR rhythm games and mixed-reality games with Claude Code, it walks you through the exact workflow: what to install, how to phrase requests so the AI builds what you mean, and how to fix bugs with evidence instead of guesswork.

You will build a complete arcade game in one afternoon with a numbered sequence of prompts, then move into 3D with Three.js, touch controls and performance tuning for phones, and WebXR for VR and mixed reality on Quest 3 and 3S, including comfort rules and headset testing.

You also get the parts most tutorials skip: where to get 3D models, sounds and AI music legally and how to read their licenses; a polish checklist; and publishing on your own free site, itch.io, CrazyGames and the Meta Horizon Store, with the requirements to check before you submit. Money is covered honestly, with no income promises.

It ends with a 30-day plan to ship your first three games and 50 ready-to-paste prompts for controls, content, juice, menus, performance, VR and publishing. Tools and rules change, so every number that can change comes with the official place to check it.

What's inside

Introduction: I Ship Games Without a Computer Science Degree. So Can You.
What You Can Realistically Build (and What to Skip for Now)
Your Setup in One Hour: Claude Code, a Browser, an Editor and Git
How to Talk to an AI Coding Assistant So It Builds What You Mean
The Single-File HTML5 Game: Why One File Beats a Complicated Project
Your First Game in an Afternoon: Comet Catcher, Prompt by Prompt
Going 3D with Three.js: Camera, Lights, Physics and GLB Models
Assets Without Lawsuits: AI 3D Models, Free Libraries and AI Music
Phones First: Touch Controls and Performance That Holds 60 FPS
VR and Mixed Reality for Meta Quest with WebXR
Game Design That Feels Good: Core Loop, Difficulty, Juice and the Polish Checklist
Testing and Debugging with AI: Find It, Prove It, Fix It
Publishing: Your Own Site, itch.io, CrazyGames and the Meta Horizon Store
Money, Marketing and Staying Legal
Your 30-Day Plan: Ship Three Games in a Month
50 Ready-to-Use Game-Building Prompts (and What to Do Next)

Read a sample

I make games for a living-room audience I will never meet. Some run in a phone browser on a bus. Some run on a Meta Quest 3 headset and put a soccer field on top of your real kitchen table. Some are 3D battles between cartoon animals on a desert map. All of them were built the same way: me describing what I want in plain language, and an AI coding assistant writing, fixing and rewriting the code with me, one feature at a time. My name is on Brojek Games. I am a Brazilian living in Switzerland, and I did not come to games through a programming career. I came through curiosity and stubbornness. Today my site hosts 3D browser games, mobile games, VR rhythm games from my Sky Beat series, and mixed-reality games for Quest 3 and 3S that run straight from the browser through WebXR. Some of my games are published on the CrazyGames portal, including Brojek Wars Desert , a turn-based 3D animal battle game, and Orbit Hop. The 3D characters come from AI model generators like Tripo and Rodin (Hyper3D), exported as GLB files. The music comes from Suno. The site itself is hosted on Cloudflare. This book is the manual I wish I had on day one. It is practical. It tells you exactly what to install, exactly what to type, what will go wrong and how to fix it, and how to put a finished game in front of real players.