Game Studio plugin for Codex
Plan, prototype, and build browser games with guided workflows for gameplay systems, UI, asset pipelines, and playtesting across 2D and 3D projects.
How to install Game Studio in Codex
codex plugin add game-studio@openai-curatedCommand format from the Codex CLI reference (codex plugin add <plugin[@marketplace]>); openai-curated is the marketplace name in OpenAI's catalog file. You need to be signed in to Codex. Source: Codex CLI reference.
Or in Codex CLI type /plugins and pick it from the OpenAI curated marketplace; in the ChatGPT desktop app, open the Plugins tab. Start a new session afterwards so the plugin's skills and tools load. (OpenAI plugin docs)
What it contains
Skills (9)
game-playtest— Run browser-game playtests and frontend QA. Use when the user asks for smoke tests, screenshot-based verification, browser automation, HUD or overlay review, or structured issue-finding in a browser game.game-studio— Route early browser-game work. Use when the user needs stack selection and workflow planning across design, implementation, assets, and playtesting before moving to a specialist skill.game-ui-frontend— Design UI surfaces for browser games. Use when the user asks for HUDs, menus, overlays, responsive layouts, or visual direction that must protect the playfield.phaser-2d-game— Implement 2D browser games with Phaser. Use when the user wants a Phaser, TypeScript, and Vite stack for scenes, gameplay systems, cameras, sprite animation, and DOM-overlay HUD patterns.react-three-fiber-game— Build React-hosted 3D browser games with React Three Fiber. Use when the user wants pmndrs-based scene composition, shared React state, and 3D HUD integration inside a React app.sprite-pipeline— Generate and normalize 2D sprite animations. Use when the user asks for full-strip generation from approved source frames, consistent anchor and scale normalization, or preview assets for browser-game animation.three-webgl-game— Implement browser-game runtimes with plain Three.js. Use when the user wants imperative scene control in TypeScript or Vite with GLB assets, loaders, physics, and low-level WebGL debugging.web-3d-asset-pipeline— Prepare and optimize browser-game 3D assets. Use when the user asks for GLB or glTF shipping work, including Blender cleanup and export, collision or LOD setup, compression, texture packaging, and runtime validation.web-game-foundations— Set browser-game architecture before implementation. Use when the user needs engine choice, simulation and render boundaries, input model, asset organization, or save/debug/performance strategy.
Example prompts from the manifest
- Design a browser game and plan the core loop
About this listing
Game Studio is in OpenAI's official curated Codex plugin catalog, published by OpenAI. It shows up in the Codex CLI plugin browser (/plugins) and in the ChatGPT desktop app's Plugins tab. The catalog lists it for the Codex product only. From its files we found 9 skills. The manifest says version 0.1.2. It's one of 79 listings in the Developer Tools category. It also appears in best Codex plugins for design and UI.
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Game Studio FAQ
How do I install Game Studio in Codex?
Run codex plugin add game-studio@openai-curated (format from the Codex CLI reference). Or in Codex CLI type /plugins and pick it from the OpenAI curated marketplace; in the ChatGPT desktop app, open the Plugins tab. Start a new session afterwards so the plugin's skills and tools load.
Is Game Studio an official Codex plugin?
Yes. Game Studio is in OpenAI's official curated Codex plugin catalog (marketplace openai-curated), published by OpenAI. It appears in the Codex CLI plugin browser and the ChatGPT desktop app's Plugins tab.
What does Game Studio include?
From its files in OpenAI's plugin repo, Game Studio includes 9 skills: game-playtest, game-studio, game-ui-frontend, phaser-2d-game, react-three-fiber-game, sprite-pipeline….
Details
- Type
- Plugin
- Category
- Developer Tools
- Source
- Official OpenAI curated
- Publisher
- OpenAI
- Version
- 0.1.2
- License
- MIT
- Sign-in
- Asks you to connect/sign in when you install it
- Availability
- Codex only (per the catalog's products field)
- Keywords
- games, phaser, threejs, react-three-fiber, gltf, rapier, webgl, sprites, playtest
- Source
- https://github.com/openai/plugins/tree/main/plugins/game-studio
- Website
- https://openai.com/
- Listed in
- OpenAI catalog file
- Tested by CodexStacks
- Not yet
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For maintainers: badge and embeds
Maintain Game Studio? Add the badge; it links to this page.
Markdown
[](https://codexstacks.com/p/game-studio/)HTML
<a href="https://codexstacks.com/p/game-studio/"><img src="https://codexstacks.com/badge.svg" alt="Listed on CodexStacks" width="172" height="28"></a>Embed card (static HTML and inline CSS, no JavaScript). Preview:
<a href="https://codexstacks.com/p/game-studio/" style="display:block;max-width:380px;box-sizing:border-box;padding:14px 16px;border:1px solid #3a2c26;border-radius:12px;background:#0d0b0a;color:#f3ece6;font:14px/1.45 -apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;text-decoration:none"><span style="display:block;font-size:16px;font-weight:700;color:#f3ece6">Game Studio</span><span style="display:block;margin:2px 0 8px;font-size:12px;color:#b5a9a1">Official Codex plugin · 9 skills</span><span style="display:block;margin:0 0 10px;color:#ddd3cc">Plan, prototype, and build browser games with guided workflows for gameplay systems, UI, asset pipelines, and…</span><span style="font-size:12px;font-weight:600;color:#ffb347">View on CodexStacks →</span></a>Markdown summary
**[Game Studio on CodexStacks](https://codexstacks.com/p/game-studio/)**: Official Codex plugin with 9 skills. Install: `codex plugin add game-studio@openai-curated`More on badges, embeds and keeping your listing up to date: CodexStacks for plugin authors.
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