Making Web and App Games with ChatGPT Codex: From Creating 8 Game Types to Store Submission

I’ll show you, through an actual work session building a to-do page from scratch, the process of requesting, checking, and revising that I refined after using more than 58.3 billion tokens with Codex. You’ll learn how to ask for the results you want without knowing all the code and how to directly verify the changes.

You don’t need to know how to code. Once you learn how to “give the right instructions” to AI tools like Claude and Codex, you can create everything yourself—from cinematic websites and motion-graphics promotional videos to AI short dramas, ads, and even podcasts made with your own voice. You’ll receive more than 20 ready-to-use kits containing projects that are actually being created and used, and we’ll show you the entire process exactly as it appears on screen: handing the folder over to AI and converting it to your brand → fixing only the parts you want with a single screenshot → completing Vercel deployment and domain connection. Recorded in October 2026 using the latest AI tools (Claude Opus 5.5 · GPT-6.1 · Grok Build), this course focuses on workflows that continue to work even when the models change.

Learn how to efficiently manage multiple AI coding agents, including Claude Code, Codex, and pi, from a single screen. Starting with tmux concepts, you’ll practice using Herdr’s sessions, panes, plugins, and CLI to build an agent workflow that keeps your work running even when your SSH connection is interrupted. Complete the essential development environment for the Agent era in just one day.

"Why did the AI write this code?" or "Why can't it remember what I just said?" The frustration you encounter when using AI tools like Claude Code stems from not knowing how the tool actually works. This course flings open that black box. Over 25 lessons, we will build our own Coding Agent from scratch that functions exactly like real-world professional tools—giving the LLM 'eyes' to see files (Read), 'hands' to fix code (Edit), and 'feet' to execute commands (Bash). This isn't just about learning how to use a library. You will gain hands-on experience by implementing code to understand how AI perceives project structures, why it loses its memory during long conversations, and how to solve those issues technically (Sliding Window, Summary). Through this process, you will evolve from being a mere 'user' of AI tools to an 'AI provider' who understands the underlying principles and can customize and evaluate tools to fit your specific needs.

Instead of using more agents, experience firsthand how to entrust them with greater confidence. With Codex CLI, build your own harness so you can delegate work without worry!

Learn how to teach Codex a task you used to explain repeatedly, just once, using a Codex skill. Here are 14 practical skills you can use directly in Codex in the ChatGPT app.

You know about AI agent frameworks, but understanding how they work and applying them in practice can be difficult, right? Drawing on firsthand experience from Silicon Valley, we’ll guide you from the core principles to practical applications.

Let's create a service that improves itself even while you sleep! Learn step-by-step how to build a 24-hour vibe coding system using loop engineering with Codex.

AI is only as good as you are. Master vibe coding in three steps: learn how to use AI → build essential foundational knowledge → develop a project. For anyone who wants to learn vibe coding properly, we break down the core concepts that stay the same no matter which AI you use into bite-sized pieces.

"Skip the formulas and code—focus on the principles and visual results!" This lecture was designed for 3D artists and modelers who have given up on understanding PBR (Physically Based Rendering) due to technical barriers. To ensure you can apply it directly to your actual work without any programming knowledge, we explain the visual principles of how light reacts on object surfaces. Basic Physics of Light: We break down intimidating terms like speed of light, illuminance, and luminance into concepts that are easy for artists to understand. Visual Implementation of Surfaces: Learn the Fresnel characteristics inherent in all objects and light reflection based on roughness through 'visual principles' rather than code. Advanced Lighting Techniques: Analyze what difference IBL (Image-Based Lighting) and Global Illumination make in actual modeling results. Understanding the Rendering Equation: Elevate the quality of your work by understanding the Rendering Equation—the core of rendering engines—not as a formula, but as a 'promise' that shows the flow of light. #PBRforArtists #3DModelerCourse #NoCodeGraphics #PhysicallyBasedRendering #PBRPrinciples #RenderingEquation #FresnelEffect #GraphicsforNonMajors #3DRenderingBasics #CGArtist #IntroToRendering #VisualPrinciplesLecture #3DWorkTips

We will develop a mobile portrait-oriented idle RPG game from start to finish using Claude Code, Vite, TypeScript, and HTML5 Canvas. This is a practical web game development project that implements core game systems such as auto-battle, gacha systems, and equipment enhancement step-by-step, with the goal of being ready for a future Google Play Store release.

This course introduces the basic usage and features of the Godot Engine and guides you through creating a simple 2D game. You will learn the basic logical structures of the Godot Engine—scenes, nodes, and the fundamentals of scripting.

If one agent wasn’t enough, bring Claude Code and Codex together as a team. Split up the roles—Opus as lead, Haiku for research, Sonnet for implementation, and Codex for review—to build a small app together. With Tailscale and RustDesk, you can also delegate tasks and check on their progress from your phone or other devices, even when you’re away from your desk.

This is the process of creating a game engine using C++, similar to the Unity game engine. It was created by inferring the internal code, and through this, we can think about the internal principles of the Unity engine.

A 30-minute free introductory course that starts with just the OpenAI API. Quickly learn the essentials—from the Responses API and JSON response handling to validation, idempotency, and logs—and learn a practical backend workflow that you can test right away without external service keys.

Game development is a complex field that goes beyond simple coding to encompass performance optimization, architecture design, collaboration, accessibility, and monetization. This course summarizes the sessions from GameDev Day 2025, a global event hosted by JetBrains, and captures the real-world challenges and solutions that professional developers face in the industry.

This course is a basic introductory program for learning how to utilize the Raspberry Pi Pico and various sensors. Learners will understand the fundamental functions of the Raspberry Pi Pico and acquire the ability to control various sensors using it. Based on a foundational understanding of the Raspberry Pi Pico, this course is structured to step-by-step improve your skills in utilizing sensors.

Build a full-scale tower defense game from scratch in Unity using C#. This practical course implements the mechanics of a strategy game—where you place characters to prevent enemy invasions—by breaking them down into individual functional components.

If you keep getting errors after asking AI to do it, the problem isn’t the AI—it’s that you lack the foundational knowledge to guide it. In this video, we’ll cover the seven foundational concepts that people who get stuck while vibe coding were missing, and explain what each one is and why it’s necessary. 👾 This is explained for people on day zero of coding who have never opened a terminal before.